833 lines
44 KiB
Python
833 lines
44 KiB
Python
# ***************************************************************************
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# * *
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# * Copyright (c) 2015 - Przemo Firszt <przemo@firszt.eu> *
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# * Copyright (c) 2015 - Bernd Hahnebach <bernd@bimstatik.org> *
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# * *
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# * This program is free software; you can redistribute it and/or modify *
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# * it under the terms of the GNU Lesser General Public License (LGPL) *
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# * as published by the Free Software Foundation; either version 2 of *
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# * the License, or (at your option) any later version. *
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# * for detail see the LICENCE text file. *
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# * *
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# * This program is distributed in the hope that it will be useful, *
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# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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# * GNU Library General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Library General Public *
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# * License along with this program; if not, write to the Free Software *
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# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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# * USA *
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# * *
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# ***************************************************************************
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__title__ = "FemInputWriterCcx"
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__author__ = "Przemo Firszt, Bernd Hahnebach"
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__url__ = "http://www.freecadweb.org"
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import FreeCAD
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import os
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import sys
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import time
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import FemMeshTools
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import FemInputWriter
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class FemInputWriterCcx(FemInputWriter.FemInputWriter):
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def __init__(self,
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analysis_obj, solver_obj,
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mesh_obj, mat_obj,
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fixed_obj, displacement_obj,
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contact_obj, planerotation_obj,
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selfweight_obj, force_obj, pressure_obj,
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temperature_obj, heatflux_obj, initialtemperature_obj,
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beamsection_obj, shellthickness_obj,
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analysis_type=None, eigenmode_parameters=None,
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dir_name=None
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):
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FemInputWriter.FemInputWriter.__init__(
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self,
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analysis_obj, solver_obj,
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mesh_obj, mat_obj,
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fixed_obj, displacement_obj,
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contact_obj, planerotation_obj,
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selfweight_obj, force_obj, pressure_obj,
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temperature_obj, heatflux_obj, initialtemperature_obj,
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beamsection_obj, shellthickness_obj,
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analysis_type, eigenmode_parameters,
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dir_name)
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self.file_name = self.dir_name + '/' + self.mesh_object.Name + '.inp'
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print('FemInputWriterCcx --> self.dir_name --> ' + self.dir_name)
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print('FemInputWriterCcx --> self.file_name --> ' + self.file_name)
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def write_calculix_input_file(self):
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self.femmesh.writeABAQUS(self.file_name)
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# reopen file with "append" and add the analysis definition
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inpfile = open(self.file_name, 'a')
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inpfile.write('\n\n')
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# node and element sets
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self.write_element_sets_material_and_femelement_type(inpfile)
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if self.fixed_objects:
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self.write_node_sets_constraints_fixed(inpfile)
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if self.displacement_objects:
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self.write_node_sets_constraints_displacement(inpfile)
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if self.planerotation_objects:
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self.write_node_sets_constraints_planerotation(inpfile)
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if self.contact_objects:
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self.write_surfaces_contraints_contact(inpfile)
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if self.analysis_type == "thermomech" and self.temperature_objects:
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self.write_node_sets_constraints_temperature(inpfile)
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# materials and fem element types
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self.write_materials(inpfile)
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if self.analysis_type == "thermomech" and self.initialtemperature_objects:
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self.write_constraints_initialtemperature(inpfile)
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self.write_femelementsets(inpfile)
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# constraints independent from steps
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if self.planerotation_objects:
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self.write_constraints_planerotation(inpfile)
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if self.contact_objects:
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self.write_constraints_contact(inpfile)
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# steps and constraints dependent on steps
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if self.analysis_type == "thermomech":
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self.write_step_begin_thermomech(inpfile)
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self.write_analysis_thermomech(inpfile)
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else:
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self.write_step_begin_static_frequency(inpfile)
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if self.fixed_objects:
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self.write_constraints_fixed(inpfile)
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if self.displacement_objects:
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self.write_constraints_displacement(inpfile)
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if self.analysis_type == "thermomech":
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self.write_constraints_temperature(inpfile)
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self.write_constraints_heatflux(inpfile)
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if self.analysis_type is None or self.analysis_type == "static":
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if self.selfweight_objects:
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self.write_constraints_selfweight(inpfile)
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if self.force_objects:
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self.write_constraints_force(inpfile)
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if self.pressure_objects:
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self.write_constraints_pressure(inpfile)
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elif self.analysis_type == "frequency":
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self.write_analysis_frequency(inpfile)
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self.write_outputs_types(inpfile)
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self.write_step_end(inpfile)
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# footer
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self.write_footer(inpfile)
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inpfile.close()
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return self.file_name
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def write_element_sets_material_and_femelement_type(self, f):
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f.write('\n***********************************************************\n')
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f.write('** Element sets for materials and FEM element type (solid, shell, beam)\n')
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f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
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if len(self.material_objects) == 1:
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if self.beamsection_objects and len(self.beamsection_objects) == 1: # single mat, single beam
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self.get_ccx_elsets_single_mat_single_beam()
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elif self.beamsection_objects and len(self.beamsection_objects) > 1: # single mat, multiple beams
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self.get_ccx_elsets_single_mat_multiple_beam()
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elif self.shellthickness_objects and len(self.shellthickness_objects) == 1: # single mat, single shell
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self.get_ccx_elsets_single_mat_single_shell()
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elif self.shellthickness_objects and len(self.shellthickness_objects) > 1: # single mat, multiple shells
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self.get_ccx_elsets_single_mat_multiple_shell()
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else: # single mat, solid
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self.get_ccx_elsets_single_mat_solid()
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else:
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if self.beamsection_objects and len(self.beamsection_objects) == 1: # multiple mats, single beam
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self.get_ccx_elsets_multiple_mat_single_beam()
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elif self.beamsection_objects and len(self.beamsection_objects) > 1: # multiple mats, multiple beams
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self.get_ccx_elsets_multiple_mat_multiple_beam()
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elif self.shellthickness_objects and len(self.shellthickness_objects) == 1: # multiple mats, single shell
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self.get_ccx_elsets_multiple_mat_single_shell()
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elif self.shellthickness_objects and len(self.shellthickness_objects) > 1: # multiple mats, multiple shells
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self.get_ccx_elsets_multiple_mat_multiple_shell()
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else: # multiple mats, solid
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self.get_ccx_elsets_multiple_mat_solid()
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for ccx_elset in self.ccx_elsets:
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f.write('*ELSET,ELSET=' + ccx_elset['ccx_elset_name'] + '\n')
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if ccx_elset['ccx_elset']:
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if ccx_elset['ccx_elset'] == self.ccx_eall:
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f.write(self.ccx_eall + '\n')
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else:
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for elid in ccx_elset['ccx_elset']:
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f.write(str(elid) + ',\n')
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else:
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f.write('**No elements found for these objects\n')
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def write_node_sets_constraints_fixed(self, f):
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# get nodes
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self.get_constraints_fixed_nodes()
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# write nodes to file
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f.write('\n***********************************************************\n')
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f.write('** Node set for fixed constraint\n')
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f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
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for femobj in self.fixed_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
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f.write('*NSET,NSET=' + femobj['Object'].Name + '\n')
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for n in femobj['Nodes']:
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f.write(str(n) + ',\n')
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def write_node_sets_constraints_displacement(self, f):
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# get nodes
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self.get_constraints_displacement_nodes()
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# write nodes to file
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f.write('\n***********************************************************\n')
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f.write('** Node sets for prescribed displacement constraint\n')
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f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
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for femobj in self.displacement_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
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f.write('*NSET,NSET=' + femobj['Object'].Name + '\n')
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for n in femobj['Nodes']:
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f.write(str(n) + ',\n')
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def write_node_sets_constraints_planerotation(self, f):
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# get nodes
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self.get_constraints_planerotation_nodes()
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# write nodes to file
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if not self.femnodes_mesh:
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self.femnodes_mesh = self.femmesh.Nodes
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f.write('\n***********************************************************\n')
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f.write('** Node set for plane rotation constraint\n')
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f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
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# info about self.constraint_conflict_nodes:
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# is used to check if MPC and constraint fixed and constraint displacement share same nodes,
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# because MPC's and constriants fixed an constraints displacement can't share same nodes.
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# thus call write_node_sets_constraints_planerotation has to be after constraint fixed and constraint displacement
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for femobj in self.planerotation_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
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l_nodes = femobj['Nodes']
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fric_obj = femobj['Object']
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f.write('*NSET,NSET=' + fric_obj.Name + '\n')
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# Code to extract nodes and coordinates on the PlaneRotation support face
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nodes_coords = []
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for node in l_nodes:
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nodes_coords.append((node, self.femnodes_mesh[node].x, self.femnodes_mesh[node].y, self.femnodes_mesh[node].z))
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node_planerotation = FemMeshTools.get_three_non_colinear_nodes(nodes_coords)
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for i in range(len(l_nodes)):
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if l_nodes[i] not in node_planerotation:
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node_planerotation.append(l_nodes[i])
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MPC_nodes = []
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for i in range(len(node_planerotation)):
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cnt = 0
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for j in range(len(self.constraint_conflict_nodes)):
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if node_planerotation[i] == self.constraint_conflict_nodes[j]:
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cnt = cnt + 1
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if cnt == 0:
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MPC = node_planerotation[i]
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MPC_nodes.append(MPC)
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for i in range(len(MPC_nodes)):
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f.write(str(MPC_nodes[i]) + ',\n')
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def write_surfaces_contraints_contact(self, f):
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# get surface nodes and write them to file
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f.write('\n***********************************************************\n')
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f.write('** Surfaces for contact constraint\n')
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f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
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obj = 0
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for femobj in self.contact_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
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contact_obj = femobj['Object']
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cnt = 0
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obj = obj + 1
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for o, elem_tup in contact_obj.References:
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for elem in elem_tup:
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ref_shape = o.Shape.getElement(elem)
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cnt = cnt + 1
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if ref_shape.ShapeType == 'Face':
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if cnt == 1:
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name = "DEP" + str(obj)
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else:
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name = "IND" + str(obj)
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f.write('*SURFACE, NAME =' + name + '\n')
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v = self.mesh_object.FemMesh.getccxVolumesByFace(ref_shape)
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for i in v:
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f.write("{},S{}\n".format(i[0], i[1]))
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def write_node_sets_constraints_temperature(self, f):
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# get nodes
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self.get_constraints_temperature_nodes()
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# write nodes to file
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f.write('\n***********************************************************\n')
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f.write('** Node sets for temperature constraints\n')
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f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
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for femobj in self.temperature_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
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f.write('*NSET,NSET=' + femobj['Object'].Name + '\n')
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for n in femobj['Nodes']:
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f.write(str(n) + ',\n')
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def write_materials(self, f):
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f.write('\n***********************************************************\n')
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f.write('** Materials\n')
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f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
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f.write('** Young\'s modulus unit is MPa = N/mm2\n')
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f.write('** Density\'s unit is t/mm^3\n')
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f.write('** Thermal conductivity unit is kW/mm/K = t*mm/K*s^3\n')
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f.write('** Specific Heat unit is kJ/t/K = mm^2/s^2/K\n')
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for femobj in self.material_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
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mat_obj = femobj['Object']
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# get material properties - Currently in SI units: M/kg/s/Kelvin
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YM_in_MPa = 1
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TC_in_WmK = 1
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TEC_in_mmK = 1
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SH_in_JkgK = 1
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PR = 1
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density_in_tonne_per_mm3 = 1
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try:
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YM = FreeCAD.Units.Quantity(mat_obj.Material['YoungsModulus'])
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YM_in_MPa = YM.getValueAs('MPa')
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except:
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FreeCAD.Console.PrintError("No YoungsModulus defined for material: default used\n")
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try:
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PR = float(mat_obj.Material['PoissonRatio'])
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except:
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FreeCAD.Console.PrintError("No PoissonRatio defined for material: default used\n")
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try:
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TC = FreeCAD.Units.Quantity(mat_obj.Material['ThermalConductivity'])
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TC_in_WmK = TC.getValueAs('W/m/K') # SvdW: Add factor to force units to results' base units of t/mm/s/K - W/m/K results in no factor needed
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except:
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FreeCAD.Console.PrintError("No ThermalConductivity defined for material: default used\n")
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try:
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TEC = FreeCAD.Units.Quantity(mat_obj.Material['ThermalExpansionCoefficient'])
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TEC_in_mmK = TEC.getValueAs('mm/mm/K')
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except:
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FreeCAD.Console.PrintError("No ThermalExpansionCoefficient defined for material: default used\n")
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try:
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SH = FreeCAD.Units.Quantity(mat_obj.Material['SpecificHeat'])
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SH_in_JkgK = SH.getValueAs('J/kg/K') * 1e+06 # SvdW: Add factor to force units to results' base units of t/mm/s/K
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except:
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FreeCAD.Console.PrintError("No SpecificHeat defined for material: default used\n")
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mat_info_name = mat_obj.Material['Name']
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mat_name = mat_obj.Name
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# write material properties
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f.write('**FreeCAD material name: ' + mat_info_name + '\n')
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f.write('*MATERIAL, NAME=' + mat_name + '\n')
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f.write('*ELASTIC \n')
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f.write('{0}, {1:.3f}\n'.format(YM_in_MPa, PR))
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try:
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density = FreeCAD.Units.Quantity(mat_obj.Material['Density'])
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density_in_tonne_per_mm3 = float(density.getValueAs('t/mm^3'))
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except:
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FreeCAD.Console.PrintError("No Density defined for material: default used\n")
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f.write('*DENSITY \n')
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f.write('{0:.3e}, \n'.format(density_in_tonne_per_mm3))
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f.write('*CONDUCTIVITY \n')
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f.write('{}, \n'.format(TC_in_WmK))
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f.write('*EXPANSION \n')
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f.write('{}, \n'.format(TEC_in_mmK))
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f.write('*SPECIFIC HEAT \n')
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f.write('{}, \n'.format(SH_in_JkgK))
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def write_femelementsets(self, f):
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f.write('\n***********************************************************\n')
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f.write('** Sections\n')
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f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
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for ccx_elset in self.ccx_elsets:
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if ccx_elset['ccx_elset']:
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if 'beamsection_obj'in ccx_elset: # beam mesh
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beamsec_obj = ccx_elset['beamsection_obj']
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elsetdef = 'ELSET=' + ccx_elset['ccx_elset_name'] + ', '
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material = 'MATERIAL=' + ccx_elset['mat_obj_name']
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height = beamsec_obj.Height.getValueAs('mm')
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width = beamsec_obj.Width.getValueAs('mm')
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if width == 0:
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section_type = ', SECTION=CIRC'
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setion_geo = str(height) + '\n'
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else:
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section_type = ', SECTION=RECT'
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setion_geo = str(height) + ', ' + str(width) + '\n'
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setion_def = '*BEAM SECTION, ' + elsetdef + material + section_type + '\n'
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f.write(setion_def)
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f.write(setion_geo)
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elif 'shellthickness_obj'in ccx_elset: # shell mesh
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shellth_obj = ccx_elset['shellthickness_obj']
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elsetdef = 'ELSET=' + ccx_elset['ccx_elset_name'] + ', '
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material = 'MATERIAL=' + ccx_elset['mat_obj_name']
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setion_def = '*SHELL SECTION, ' + elsetdef + material + '\n'
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setion_geo = str(shellth_obj.Thickness.getValueAs('mm')) + '\n'
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f.write(setion_def)
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f.write(setion_geo)
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else: # solid mesh
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elsetdef = 'ELSET=' + ccx_elset['ccx_elset_name'] + ', '
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material = 'MATERIAL=' + ccx_elset['mat_obj_name']
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setion_def = '*SOLID SECTION, ' + elsetdef + material + '\n'
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f.write(setion_def)
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def write_step_begin_static_frequency(self, f):
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f.write('\n***********************************************************\n')
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f.write('** One step is needed to run the mechanical analysis of FreeCAD\n')
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f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
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static_frequency_step = '*STEP'
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if self.solver_obj.GeometricalNonlinearity == "nonlinear" and self.analysis_type == 'static':
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static_frequency_step += ', NLGEOM' # https://www.comsol.com/blogs/what-is-geometric-nonlinearity/
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elif self.solver_obj.GeometricalNonlinearity == "nonlinear" and self.analysis_type == 'frequency':
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print('Analysis type frequency and geometrical nonlinear analyis are not allowed together, linear is used instead!')
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f.write(static_frequency_step + '\n')
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if self.solver_obj.IterationsControlParameterTimeUse:
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f.write('*CONTROLS, PARAMETERS=TIME INCREMENTATION\n')
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f.write(self.solver_obj.IterationsControlParameterIter + '\n')
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f.write(self.solver_obj.IterationsControlParameterCutb + '\n')
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analysis_static = '*STATIC'
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if self.solver_obj.MatrixSolverType == "default":
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pass
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elif self.solver_obj.MatrixSolverType == "spooles":
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analysis_static += ', SOLVER=SPOOLES'
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elif self.solver_obj.MatrixSolverType == "iterativescaling":
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analysis_static += ', SOLVER=ITERATIVE SCALING'
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elif self.solver_obj.MatrixSolverType == "iterativecholesky":
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analysis_static += ', SOLVER=ITERATIVE CHOLESKY'
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f.write(analysis_static + '\n')
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def write_step_begin_thermomech(self, f):
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f.write('\n***********************************************************\n')
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f.write('** One step is needed to run the thermomechanical analysis of FreeCAD\n')
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f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
thermomech_step = '*STEP'
|
|
if self.solver_obj.GeometricalNonlinearity == "nonlinear":
|
|
thermomech_step += ', NLGEOM'
|
|
thermomech_step += ', INC=' + str(self.solver_obj.IterationsMaximum)
|
|
f.write(thermomech_step + '\n')
|
|
if self.solver_obj.IterationsControlParameterTimeUse:
|
|
f.write('*CONTROLS, PARAMETERS=TIME INCREMENTATION\n')
|
|
f.write(self.solver_obj.IterationsControlParameterIter + '\n')
|
|
f.write(self.solver_obj.IterationsControlParameterCutb + '\n')
|
|
|
|
def write_constraints_fixed(self, f):
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** Constraints\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
for femobj in self.fixed_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
|
|
fix_obj_name = femobj['Object'].Name
|
|
f.write('*BOUNDARY\n')
|
|
f.write(fix_obj_name + ',1\n')
|
|
f.write(fix_obj_name + ',2\n')
|
|
f.write(fix_obj_name + ',3\n')
|
|
if self.beamsection_objects or self.shellthickness_objects:
|
|
f.write(fix_obj_name + ',4\n')
|
|
f.write(fix_obj_name + ',5\n')
|
|
f.write(fix_obj_name + ',6\n')
|
|
f.write('\n')
|
|
|
|
def write_constraints_displacement(self, f):
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** Displacement constraint applied\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
for femobj in self.displacement_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
|
|
disp_obj = femobj['Object']
|
|
disp_obj_name = disp_obj.Name
|
|
f.write('*BOUNDARY\n')
|
|
if disp_obj.xFix:
|
|
f.write(disp_obj_name + ',1\n')
|
|
elif not disp_obj.xFree:
|
|
f.write(disp_obj_name + ',1,1,' + str(disp_obj.xDisplacement) + '\n')
|
|
if disp_obj.yFix:
|
|
f.write(disp_obj_name + ',2\n')
|
|
elif not disp_obj.yFree:
|
|
f.write(disp_obj_name + ',2,2,' + str(disp_obj.yDisplacement) + '\n')
|
|
if disp_obj.zFix:
|
|
f.write(disp_obj_name + ',3\n')
|
|
elif not disp_obj.zFree:
|
|
f.write(disp_obj_name + ',3,3,' + str(disp_obj.zDisplacement) + '\n')
|
|
|
|
if self.beamsection_objects or self.shellthickness_objects:
|
|
if disp_obj.rotxFix:
|
|
f.write(disp_obj_name + ',4\n')
|
|
elif not disp_obj.rotxFree:
|
|
f.write(disp_obj_name + ',4,4,' + str(disp_obj.xRotation) + '\n')
|
|
if disp_obj.rotyFix:
|
|
f.write(disp_obj_name + ',5\n')
|
|
elif not disp_obj.rotyFree:
|
|
f.write(disp_obj_name + ',5,5,' + str(disp_obj.yRotation) + '\n')
|
|
if disp_obj.rotzFix:
|
|
f.write(disp_obj_name + ',6\n')
|
|
elif not disp_obj.rotzFree:
|
|
f.write(disp_obj_name + ',6,6,' + str(disp_obj.zRotation) + '\n')
|
|
f.write('\n')
|
|
|
|
def write_constraints_contact(self, f):
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** Contact Constraints\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
obj = 0
|
|
for femobj in self.contact_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
|
|
obj = obj + 1
|
|
contact_obj = femobj['Object']
|
|
f.write('*CONTACT PAIR, INTERACTION=INT' + str(obj) + ',TYPE=SURFACE TO SURFACE\n')
|
|
ind_surf = "IND" + str(obj)
|
|
dep_surf = "DEP" + str(obj)
|
|
f.write(dep_surf + ',' + ind_surf + '\n')
|
|
f.write('*SURFACE INTERACTION, NAME=INT' + str(obj) + '\n')
|
|
f.write('*SURFACE BEHAVIOR,PRESSURE-OVERCLOSURE=LINEAR\n')
|
|
slope = contact_obj.Slope
|
|
f.write(str(slope) + ' \n')
|
|
friction = contact_obj.Friction
|
|
if friction > 0:
|
|
f.write('*FRICTION \n')
|
|
stick = (slope / 10.0)
|
|
f.write(str(friction) + ', ' + str(stick) + ' \n')
|
|
|
|
def write_constraints_planerotation(self, f):
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** PlaneRotation Constraints\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
for femobj in self.planerotation_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
|
|
fric_obj_name = femobj['Object'].Name
|
|
f.write('*MPC\n')
|
|
f.write('PLANE,' + fric_obj_name + '\n')
|
|
|
|
def write_constraints_temperature(self, f):
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** Fixed temperature constraint applied\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
for ftobj in self.temperature_objects:
|
|
fixedtemp_obj = ftobj['Object']
|
|
f.write('*BOUNDARY\n')
|
|
f.write('{},11,11,{}\n'.format(fixedtemp_obj.Name, fixedtemp_obj.Temperature))
|
|
f.write('\n')
|
|
|
|
def write_constraints_selfweight(self, f):
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** Self weight\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
for femobj in self.selfweight_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
|
|
selwei_obj_name = femobj['Object'].Name
|
|
f.write('** ' + selwei_obj_name + '\n')
|
|
f.write('*DLOAD\n')
|
|
f.write('Eall,GRAV,9810,0,0,-1\n')
|
|
f.write('\n')
|
|
# die grav (erdbeschleunigung) ist fuer alle gleich
|
|
# die verschidene density wurde in den material sets geschrieben !
|
|
|
|
def write_constraints_force(self, f):
|
|
# check shape type of reference shape and get node loads
|
|
self.get_constraints_force_nodeloads()
|
|
# write node loads to file
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** Node loads\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
f.write('*CLOAD\n')
|
|
for femobj in self.force_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
|
|
frc_obj_name = femobj['Object'].Name
|
|
direction_vec = femobj['Object'].DirectionVector
|
|
f.write('** ' + frc_obj_name + '\n')
|
|
for ref_shape in femobj['NodeLoadTable']:
|
|
f.write('** ' + ref_shape[0] + '\n')
|
|
for n in sorted(ref_shape[1]):
|
|
node_load = ref_shape[1][n]
|
|
if (direction_vec.x != 0.0):
|
|
v1 = "{:.13E}".format(direction_vec.x * node_load)
|
|
f.write(str(n) + ',1,' + v1 + '\n')
|
|
if (direction_vec.y != 0.0):
|
|
v2 = "{:.13E}".format(direction_vec.y * node_load)
|
|
f.write(str(n) + ',2,' + v2 + '\n')
|
|
if (direction_vec.z != 0.0):
|
|
v3 = "{:.13E}".format(direction_vec.z * node_load)
|
|
f.write(str(n) + ',3,' + v3 + '\n')
|
|
f.write('\n')
|
|
f.write('\n')
|
|
|
|
def write_constraints_pressure(self, f):
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** Element + CalculiX face + load in [MPa]\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
for femobj in self.pressure_objects: # femobj --> dict, FreeCAD document object is femobj['Object']
|
|
prs_obj = femobj['Object']
|
|
f.write('*DLOAD\n')
|
|
for o, elem_tup in prs_obj.References:
|
|
rev = -1 if prs_obj.Reversed else 1
|
|
for elem in elem_tup:
|
|
ref_shape = o.Shape.getElement(elem)
|
|
if ref_shape.ShapeType == 'Face':
|
|
v = self.femmesh.getccxVolumesByFace(ref_shape)
|
|
f.write("** Load on face {}\n".format(elem))
|
|
for i in v:
|
|
f.write("{},P{},{}\n".format(i[0], i[1], rev * prs_obj.Pressure))
|
|
|
|
def write_constraints_heatflux(self, f):
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** Heatflux constraints\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
for hfobj in self.heatflux_objects:
|
|
heatflux_obj = hfobj['Object']
|
|
f.write('*FILM\n')
|
|
for o, elem_tup in heatflux_obj.References:
|
|
for elem in elem_tup:
|
|
ho = o.Shape.getElement(elem)
|
|
if ho.ShapeType == 'Face':
|
|
v = self.mesh_object.FemMesh.getccxVolumesByFace(ho)
|
|
f.write("** Heat flux on face {}\n".format(elem))
|
|
for i in v:
|
|
f.write("{},F{},{},{}\n".format(i[0], i[1], heatflux_obj.AmbientTemp, heatflux_obj.FilmCoef * 0.001)) # SvdW add factor to force heatflux to units system of t/mm/s/K # OvG: Only write out the VolumeIDs linked to a particular face
|
|
|
|
def write_analysis_frequency(self, f):
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** Frequency analysis\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
f.write('*FREQUENCY\n')
|
|
f.write('{},{},{}\n'.format(self.no_of_eigenfrequencies, self.eigenfrequeny_range_low, self.eigenfrequeny_range_high))
|
|
|
|
def write_analysis_thermomech(self, f):
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** Coupled temperature displacement analysis\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
thermomech_analysis = '*COUPLED TEMPERATURE-DISPLACEMENT'
|
|
if self.solver_obj.MatrixSolverType == "default":
|
|
pass
|
|
elif self.solver_obj.MatrixSolverType == "spooles":
|
|
thermomech_analysis += ', SOLVER=SPOOLES'
|
|
elif self.solver_obj.MatrixSolverType == "iterativescaling":
|
|
thermomech_analysis += ', SOLVER=ITERATIVE SCALING'
|
|
elif self.solver_obj.MatrixSolverType == "iterativecholesky":
|
|
thermomech_analysis += ', SOLVER=ITERATIVE CHOLESKY'
|
|
if self.solver_obj.SteadyState:
|
|
thermomech_analysis += ', STEADY STATE'
|
|
self.solver_obj.TimeInitialStep = 1.0 # Set time to 1 and ignore user inputs for steady state
|
|
self.solver_obj.TimeEnd = 1.0
|
|
thermomech_time = '{},{}'.format(self.solver_obj.TimeInitialStep, self.solver_obj.TimeEnd) # OvG: 1.0 increment, total time 1 for steady state will cut back automatically
|
|
f.write(thermomech_analysis + '\n')
|
|
f.write(thermomech_time + '\n')
|
|
|
|
def write_constraints_initialtemperature(self, f):
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** Initial temperature constraint\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
f.write('*INITIAL CONDITIONS,TYPE=TEMPERATURE\n')
|
|
for itobj in self.initialtemperature_objects: # Should only be one
|
|
inittemp_obj = itobj['Object']
|
|
f.write('Nall,{}\n'.format(inittemp_obj.initialTemperature)) # OvG: Initial temperature
|
|
|
|
def write_outputs_types(self, f):
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** Outputs --> frd file\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
if self.beamsection_objects or self.shellthickness_objects:
|
|
f.write('*NODE FILE, OUTPUT=2d\n')
|
|
else:
|
|
f.write('*NODE FILE\n')
|
|
if self.analysis_type == "thermomech": # MPH write out nodal temperatures if thermomechanical
|
|
f.write('U, NT\n')
|
|
else:
|
|
f.write('U\n')
|
|
f.write('*EL FILE\n')
|
|
f.write('S, E\n')
|
|
f.write('** outputs --> dat file\n')
|
|
f.write('*NODE PRINT , NSET=Nall \n')
|
|
f.write('U \n')
|
|
f.write('*EL PRINT , ELSET=Eall \n')
|
|
f.write('S \n')
|
|
|
|
def write_step_end(self, f):
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
f.write('*END STEP \n')
|
|
|
|
def write_footer(self, f):
|
|
f.write('\n***********************************************************\n')
|
|
f.write('** CalculiX Input file\n')
|
|
f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
|
|
f.write('** written by --> FreeCAD ' + self.fc_ver[0] + '.' + self.fc_ver[1] + '.' + self.fc_ver[2] + '\n')
|
|
f.write('** written on --> ' + time.ctime() + '\n')
|
|
f.write('** file name --> ' + os.path.basename(FreeCAD.ActiveDocument.FileName) + '\n')
|
|
f.write('** analysis name --> ' + self.analysis.Name + '\n')
|
|
f.write('**\n')
|
|
f.write('**\n')
|
|
f.write('**\n')
|
|
f.write('** Units\n')
|
|
f.write('**\n')
|
|
f.write('** Geometry (mesh data) --> mm\n')
|
|
f.write("** Materials (Young's modulus) --> N/mm2 = MPa\n")
|
|
f.write('** Loads (nodal loads) --> N\n')
|
|
f.write('**\n')
|
|
|
|
# self.ccx_elsets = [ {
|
|
# 'beamsection_obj' : 'beamsection_obj' if exists
|
|
# 'shellthickness_obj' : shellthickness_obj' if exists
|
|
# 'ccx_elset' : [e1, e2, e3, ... , en] or string self.ccx_eall
|
|
# 'ccx_elset_name' : 'ccx_identifier_elset'
|
|
# 'mat_obj_name' : 'mat_obj.Name'
|
|
# 'ccx_mat_name' : 'mat_obj.Material['Name']' !!! not unique !!!
|
|
# },
|
|
# {}, ... , {} ]
|
|
def get_ccx_elsets_single_mat_single_beam(self):
|
|
mat_obj = self.material_objects[0]['Object']
|
|
beamsec_obj = self.beamsection_objects[0]['Object']
|
|
ccx_elset = {}
|
|
ccx_elset['beamsection_obj'] = beamsec_obj
|
|
ccx_elset['ccx_elset'] = self.ccx_eall
|
|
ccx_elset['ccx_elset_name'] = get_ccx_elset_beam_name(mat_obj.Name, beamsec_obj.Name)
|
|
ccx_elset['mat_obj_name'] = mat_obj.Name
|
|
ccx_elset['ccx_mat_name'] = mat_obj.Material['Name']
|
|
self.ccx_elsets.append(ccx_elset)
|
|
|
|
def get_ccx_elsets_single_mat_single_shell(self):
|
|
mat_obj = self.material_objects[0]['Object']
|
|
shellth_obj = self.shellthickness_objects[0]['Object']
|
|
ccx_elset = {}
|
|
ccx_elset['shellthickness_obj'] = shellth_obj
|
|
ccx_elset['ccx_elset'] = self.ccx_eall
|
|
ccx_elset['ccx_elset_name'] = get_ccx_elset_shell_name(mat_obj.Name, shellth_obj.Name)
|
|
ccx_elset['mat_obj_name'] = mat_obj.Name
|
|
ccx_elset['ccx_mat_name'] = mat_obj.Material['Name']
|
|
self.ccx_elsets.append(ccx_elset)
|
|
|
|
def get_ccx_elsets_single_mat_solid(self):
|
|
mat_obj = self.material_objects[0]['Object']
|
|
ccx_elset = {}
|
|
ccx_elset['ccx_elset'] = self.ccx_eall
|
|
ccx_elset['ccx_elset_name'] = get_ccx_elset_solid_name(mat_obj.Name)
|
|
ccx_elset['mat_obj_name'] = mat_obj.Name
|
|
ccx_elset['ccx_mat_name'] = mat_obj.Material['Name']
|
|
self.ccx_elsets.append(ccx_elset)
|
|
|
|
def get_ccx_elsets_single_mat_multiple_beam(self):
|
|
if not self.femelement_table:
|
|
self.femelement_table = FemMeshTools.get_femelement_table(self.femmesh)
|
|
mat_obj = self.material_objects[0]['Object']
|
|
FemMeshTools.get_femelement_sets(self.femmesh, self.femelement_table, self.beamsection_objects)
|
|
for beamsec_data in self.beamsection_objects:
|
|
beamsec_obj = beamsec_data['Object']
|
|
ccx_elset = {}
|
|
ccx_elset['beamsection_obj'] = beamsec_obj
|
|
ccx_elset['ccx_elset'] = beamsec_data['FEMElements']
|
|
ccx_elset['ccx_elset_name'] = get_ccx_elset_beam_name(mat_obj.Name, beamsec_obj.Name, None, beamsec_data['ShortName'])
|
|
ccx_elset['mat_obj_name'] = mat_obj.Name
|
|
ccx_elset['ccx_mat_name'] = mat_obj.Material['Name']
|
|
self.ccx_elsets.append(ccx_elset)
|
|
|
|
def get_ccx_elsets_single_mat_multiple_shell(self):
|
|
if not self.femelement_table:
|
|
self.femelement_table = FemMeshTools.get_femelement_table(self.femmesh)
|
|
mat_obj = self.material_objects[0]['Object']
|
|
FemMeshTools.get_femelement_sets(self.femmesh, self.femelement_table, self.shellthickness_objects)
|
|
for shellth_data in self.shellthickness_objects:
|
|
shellth_obj = shellth_data['Object']
|
|
ccx_elset = {}
|
|
ccx_elset['shellthickness_obj'] = shellth_obj
|
|
ccx_elset['ccx_elset'] = shellth_data['FEMElements']
|
|
ccx_elset['ccx_elset_name'] = get_ccx_elset_shell_name(mat_obj.Name, shellth_obj.Name, None, shellth_data['ShortName'])
|
|
ccx_elset['mat_obj_name'] = mat_obj.Name
|
|
ccx_elset['ccx_mat_name'] = mat_obj.Material['Name']
|
|
self.ccx_elsets.append(ccx_elset)
|
|
|
|
def get_ccx_elsets_multiple_mat_single_beam(self):
|
|
if not self.femelement_table:
|
|
self.femelement_table = FemMeshTools.get_femelement_table(self.femmesh)
|
|
beamsec_obj = self.beamsection_objects[0]['Object']
|
|
FemMeshTools.get_femelement_sets(self.femmesh, self.femelement_table, self.material_objects)
|
|
for mat_data in self.material_objects:
|
|
mat_obj = mat_data['Object']
|
|
ccx_elset = {}
|
|
ccx_elset['beamsection_obj'] = beamsec_obj
|
|
ccx_elset['ccx_elset'] = mat_data['FEMElements']
|
|
ccx_elset['ccx_elset_name'] = get_ccx_elset_beam_name(mat_obj.Name, beamsec_obj.Name, mat_data['ShortName'])
|
|
ccx_elset['mat_obj_name'] = mat_obj.Name
|
|
ccx_elset['ccx_mat_name'] = mat_obj.Material['Name']
|
|
self.ccx_elsets.append(ccx_elset)
|
|
|
|
def get_ccx_elsets_multiple_mat_single_shell(self):
|
|
if not self.femelement_table:
|
|
self.femelement_table = FemMeshTools.get_femelement_table(self.femmesh)
|
|
shellth_obj = self.shellthickness_objects[0]['Object']
|
|
FemMeshTools.get_femelement_sets(self.femmesh, self.femelement_table, self.material_objects)
|
|
for mat_data in self.material_objects:
|
|
mat_obj = mat_data['Object']
|
|
ccx_elset = {}
|
|
ccx_elset['shellthickness_obj'] = shellth_obj
|
|
ccx_elset['ccx_elset'] = mat_data['FEMElements']
|
|
ccx_elset['ccx_elset_name'] = get_ccx_elset_shell_name(mat_obj.Name, shellth_obj.Name, mat_data['ShortName'])
|
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ccx_elset['mat_obj_name'] = mat_obj.Name
|
|
ccx_elset['ccx_mat_name'] = mat_obj.Material['Name']
|
|
self.ccx_elsets.append(ccx_elset)
|
|
|
|
def get_ccx_elsets_multiple_mat_solid(self):
|
|
if not self.femelement_table:
|
|
self.femelement_table = FemMeshTools.get_femelement_table(self.femmesh)
|
|
FemMeshTools.get_femelement_sets(self.femmesh, self.femelement_table, self.material_objects)
|
|
for mat_data in self.material_objects:
|
|
mat_obj = mat_data['Object']
|
|
ccx_elset = {}
|
|
ccx_elset['ccx_elset'] = mat_data['FEMElements']
|
|
ccx_elset['ccx_elset_name'] = get_ccx_elset_solid_name(mat_obj.Name, None, mat_data['ShortName'])
|
|
ccx_elset['mat_obj_name'] = mat_obj.Name
|
|
ccx_elset['ccx_mat_name'] = mat_obj.Material['Name']
|
|
self.ccx_elsets.append(ccx_elset)
|
|
|
|
def get_ccx_elsets_multiple_mat_multiple_beam(self):
|
|
if not self.femelement_table:
|
|
self.femelement_table = FemMeshTools.get_femelement_table(self.femmesh)
|
|
FemMeshTools.get_femelement_sets(self.femmesh, self.femelement_table, self.beamsection_objects)
|
|
FemMeshTools.get_femelement_sets(self.femmesh, self.femelement_table, self.material_objects)
|
|
for beamsec_data in self.beamsection_objects:
|
|
beamsec_obj = beamsec_data['Object']
|
|
for mat_data in self.material_objects:
|
|
mat_obj = mat_data['Object']
|
|
ccx_elset = {}
|
|
ccx_elset['beamsection_obj'] = beamsec_obj
|
|
elemids = []
|
|
for elemid in beamsec_data['FEMElements']:
|
|
if elemid in mat_data['FEMElements']:
|
|
elemids.append(elemid)
|
|
ccx_elset['ccx_elset'] = elemids
|
|
ccx_elset['ccx_elset_name'] = get_ccx_elset_beam_name(mat_obj.Name, beamsec_obj.Name, mat_data['ShortName'], beamsec_data['ShortName'])
|
|
ccx_elset['mat_obj_name'] = mat_obj.Name
|
|
ccx_elset['ccx_mat_name'] = mat_obj.Material['Name']
|
|
self.ccx_elsets.append(ccx_elset)
|
|
|
|
def get_ccx_elsets_multiple_mat_multiple_shell(self):
|
|
if not self.femelement_table:
|
|
self.femelement_table = FemMeshTools.get_femelement_table(self.femmesh)
|
|
FemMeshTools.get_femelement_sets(self.femmesh, self.femelement_table, self.shellthickness_objects)
|
|
FemMeshTools.get_femelement_sets(self.femmesh, self.femelement_table, self.material_objects)
|
|
for shellth_data in self.shellthickness_objects:
|
|
shellth_obj = shellth_data['Object']
|
|
for mat_data in self.material_objects:
|
|
mat_obj = mat_data['Object']
|
|
ccx_elset = {}
|
|
ccx_elset['shellthickness_obj'] = shellth_obj
|
|
elemids = []
|
|
for elemid in shellth_data['FEMElements']:
|
|
if elemid in mat_data['FEMElements']:
|
|
elemids.append(elemid)
|
|
ccx_elset['ccx_elset'] = elemids
|
|
ccx_elset['ccx_elset_name'] = get_ccx_elset_shell_name(mat_obj.Name, shellth_obj.Name, mat_data['ShortName'], shellth_data['ShortName'])
|
|
ccx_elset['mat_obj_name'] = mat_obj.Name
|
|
ccx_elset['ccx_mat_name'] = mat_obj.Material['Name']
|
|
self.ccx_elsets.append(ccx_elset)
|
|
|
|
|
|
# Helpers
|
|
def get_ccx_elset_beam_name(mat_name, beamsec_name, mat_short_name=None, beamsec_short_name=None):
|
|
if not mat_short_name:
|
|
mat_short_name = 'Mat0'
|
|
if not beamsec_short_name:
|
|
beamsec_short_name = 'Beam0'
|
|
if len(mat_name + beamsec_name) > 20: # max identifier lenght in CalculiX for beam elsets
|
|
return mat_short_name + beamsec_short_name
|
|
else:
|
|
return mat_name + beamsec_name
|
|
|
|
|
|
def get_ccx_elset_shell_name(mat_name, shellth_name, mat_short_name=None, shellth_short_name=None):
|
|
if not mat_short_name:
|
|
mat_short_name = 'Mat0'
|
|
if not shellth_short_name:
|
|
shellth_short_name = 'Shell0'
|
|
if len(mat_name + shellth_name) > 80: # standard max identifier lenght in CalculiX
|
|
return mat_short_name + shellth_short_name
|
|
else:
|
|
return mat_name + shellth_name
|
|
|
|
|
|
def get_ccx_elset_solid_name(mat_name, solid_name=None, mat_short_name=None):
|
|
if not solid_name:
|
|
solid_name = 'Solid'
|
|
if not mat_short_name:
|
|
mat_short_name = 'Mat0'
|
|
if len(mat_name + solid_name) > 80: # standard max identifier lenght in CalculiX
|
|
return mat_short_name + solid_name
|
|
else:
|
|
return mat_name + solid_name
|