FEM: frd import mesh - added HEX20, PENTA6, PENTA15
This commit is contained in:
fandaL
Yorik van Havre
parent
32624cbe94
commit
98cd075a84
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@ -39,8 +39,11 @@ def readResult(frd_input):
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frd_file = pyopen(frd_input, "r")
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nodes = {}
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elements_hexa8 = {}
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elements_penta6 = {}
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elements_tetra4 = {}
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elements_tetra10 = {}
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elements_penta15 = {}
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elements_hexa20 = {}
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elements_tria3 = {}
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elements_tria6 = {}
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elements_quad4 = {}
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@ -55,6 +58,7 @@ def readResult(frd_input):
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nodes_found = False
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mode_stress_found = False
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elements_found = False
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input_continues = False
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eigenmode = 0
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elem = -1
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elemType = 0
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@ -88,6 +92,15 @@ def readResult(frd_input):
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node_id_3 = int(line[63:73])
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node_id_4 = int(line[73:83])
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elements_hexa8[elem] = (node_id_1, node_id_2, node_id_3, node_id_4, node_id_5, node_id_6, node_id_7, node_id_8)
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#then the 6 id's for the PENTA6 element
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if elements_found and (line[1:3] == "-2") and elemType == 2:
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node_id_4 = int(line[3:13])
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node_id_5 = int(line[13:23])
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node_id_6 = int(line[23:33])
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node_id_1 = int(line[33:43])
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node_id_2 = int(line[43:53])
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node_id_3 = int(line[53:63])
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elements_penta6[elem] = (node_id_1, node_id_2, node_id_3, node_id_4, node_id_5, node_id_6)
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#then the 4 id's for the TETRA4 element
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if elements_found and (line[1:3] == "-2") and elemType == 3:
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node_id_2 = int(line[3:13])
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@ -95,6 +108,55 @@ def readResult(frd_input):
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node_id_3 = int(line[23:33])
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node_id_4 = int(line[33:43])
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elements_tetra4[elem] = (node_id_1, node_id_2, node_id_3, node_id_4)
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#then the 20 id's for the HEXA20 element
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if elements_found and (line[1:3] == "-2") and elemType == 4 and input_continues == False:
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node_id_5 = int(line[3:13])
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node_id_6 = int(line[13:23])
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node_id_7 = int(line[23:33])
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node_id_8 = int(line[33:43])
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node_id_1 = int(line[43:53])
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node_id_2 = int(line[53:63])
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node_id_3 = int(line[63:73])
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node_id_4 = int(line[73:83])
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node_id_13 = int(line[83:93])
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node_id_14 = int(line[93:103])
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input_continues = True
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elif elements_found and (line[1:3] == "-2") and elemType == 4 and input_continues == True:
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node_id_15 = int(line[3:13])
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node_id_16 = int(line[13:23])
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node_id_9 = int(line[23:33])
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node_id_10 = int(line[33:43])
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node_id_11 = int(line[43:53])
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node_id_12 = int(line[53:63])
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node_id_17 = int(line[63:73])
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node_id_18 = int(line[73:83])
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node_id_19 = int(line[83:93])
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node_id_20 = int(line[93:103])
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input_continues = False
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elements_hexa20[elem] = ( node_id_1, node_id_2, node_id_3, node_id_4, node_id_5, node_id_6, node_id_7, node_id_8, node_id_9, node_id_10,
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node_id_11,node_id_12,node_id_13,node_id_14,node_id_15,node_id_16,node_id_17,node_id_18,node_id_19, node_id_20)
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#then the 15 id's for the PENTA15 element
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if elements_found and (line[1:3] == "-2") and elemType == 5 and input_continues == False:
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node_id_4 = int(line[3:13])
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node_id_5 = int(line[13:23])
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node_id_6 = int(line[23:33])
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node_id_1 = int(line[33:43])
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node_id_2 = int(line[43:53])
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node_id_3 = int(line[53:63])
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node_id_10 = int(line[63:73])
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node_id_11 = int(line[73:83])
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node_id_12 = int(line[83:93])
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node_id_13 = int(line[93:103])
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input_continues = True
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elif elements_found and (line[1:3] == "-2") and elemType == 5 and input_continues == True:
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node_id_14 = int(line[3:13])
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node_id_15 = int(line[13:23])
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node_id_7 = int(line[23:33])
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node_id_8 = int(line[33:43])
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node_id_9 = int(line[43:53])
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input_continues = False
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elements_penta15[elem] = ( node_id_1, node_id_2, node_id_3, node_id_4, node_id_5, node_id_6, node_id_7, node_id_8, node_id_9, node_id_10,
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node_id_11,node_id_12,node_id_13,node_id_14,node_id_15)
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#then the 10 id's for the TETRA10 element
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if elements_found and (line[1:3] == "-2") and elemType == 6:
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node_id_2 = int(line[3:13])
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@ -193,8 +255,11 @@ def readResult(frd_input):
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elements_found = False
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frd_file.close()
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return {'Nodes': nodes, 'Hexa8Elem': elements_hexa8, 'Tetra4Elem': elements_tetra4, 'Tetra10Elem': elements_tetra10, 'Tria3Elem': elements_tria3,
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'Tria6Elem': elements_tria6, 'Quad4Elem': elements_quad4, 'Quad8Elem': elements_quad8, 'Seg2Elem': elements_seg2, 'Results': results}
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return {'Nodes': nodes,
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'Hexa8Elem': elements_hexa8, 'Penta6Elem': elements_penta6, 'Tetra4Elem': elements_tetra4, 'Tetra10Elem': elements_tetra10,
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'Penta15Elem': elements_penta15, 'Hexa20Elem': elements_hexa20, 'Tria3Elem': elements_tria3, 'Tria6Elem': elements_tria6,
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'Quad4Elem': elements_quad4, 'Quad8Elem': elements_quad8, 'Seg2Elem': elements_seg2,
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'Results': results}
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def calculate_von_mises(i):
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@ -238,10 +303,10 @@ def importFrd(filename, analysis=None):
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z_span = abs(p_z_max - p_z_min)
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span = max(x_span, y_span, z_span)
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if (not analysis) and ('Nodes' in m) and (('Hexa8Elem' in m) or
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('Tetra4Elem' in m) or ('Tetra10Elem' in m) or ('Tria3Elem' in m) or
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('Tria6Elem' in m) or ('Quad4Elem' in m) or ('Quad8Elem' in m) or
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('Seg2Elem' in m)):
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if (not analysis) and ('Nodes' in m) and \
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(('Hexa8Elem' in m) or ('Penta6Elem' in m) or ('Tetra4Elem' in m) or ('Tetra10Elem' in m) or \
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('Penta6Elem' in m) or ('Hexa20Elem' in m) or ('Tria3Elem' in m) or ('Tria6Elem' in m) or \
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('Quad4Elem' in m) or ('Quad8Elem' in m) or ('Seg2Elem' in m)):
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mesh = Fem.FemMesh()
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nds = m['Nodes']
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@ -252,6 +317,10 @@ def importFrd(filename, analysis=None):
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for i in elms_hexa8:
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e = elms_hexa8[i]
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mesh.addVolume([e[0], e[1], e[2], e[3], e[4], e[5], e[6], e[7]], i)
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elms_penta6 = m['Penta6Elem']
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for i in elms_penta6:
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e = elms_penta6[i]
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mesh.addVolume([e[0], e[1], e[2], e[3], e[4], e[5]], i)
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elms_tetra4 = m['Tetra4Elem']
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for i in elms_tetra4:
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e = elms_tetra4[i]
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@ -260,6 +329,16 @@ def importFrd(filename, analysis=None):
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for i in elms_tetra10:
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e = elms_tetra10[i]
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mesh.addVolume([e[0], e[1], e[2], e[3], e[4], e[5], e[6], e[7], e[8], e[9]], i)
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elms_penta15 = m['Penta15Elem']
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for i in elms_penta15:
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e = elms_penta15[i]
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mesh.addVolume([ e[0], e[1], e[2], e[3], e[4], e[5], e[6], e[7], e[8], e[9],
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e[10],e[11],e[12],e[13],e[14]], i)
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elms_hexa20 = m['Hexa20Elem']
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for i in elms_hexa20:
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e = elms_hexa20[i]
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mesh.addVolume([ e[0], e[1], e[2], e[3], e[4], e[5], e[6], e[7], e[8], e[9],
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e[10],e[11],e[12],e[13],e[14],e[15],e[16],e[17],e[18],e[19]], i)
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elms_tria3 = m['Tria3Elem']
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for i in elms_tria3:
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e = elms_tria3[i]
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@ -280,10 +359,10 @@ def importFrd(filename, analysis=None):
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for i in elms_seg2:
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e = elms_seg2[i]
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mesh.addEdge(e[0], e[1])
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print ("imported mesh: {} nodes, {} HEXA8, {} TETRA4, {} TETRA10".format(
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len(nds), len(elms_hexa8), len(elms_tetra4), len(elms_tetra10)))
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print ("imported mesh: {} TRIA3, {} TRIA6, {} QUAD4, {} QUAD8, {} SEG2".format(
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len(elms_tria3), len(elms_tria6), len(elms_quad4), len(elms_quad8), len(elms_seg2)))
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print ("imported mesh: {} nodes, {} HEXA8, {} PENTA6, {} TETRA4, {} TETRA10, {} PENTA15".format(
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len(nds), len(elms_hexa8), len(elms_penta6), len(elms_tetra4), len(elms_tetra10), len(elms_penta15)))
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print ("imported mesh: {} HEXA20, {} TRIA3, {} TRIA6, {} QUAD4, {} QUAD8, {} SEG2".format(
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len(elms_hexa20), len(elms_tria3), len(elms_tria6), len(elms_quad4), len(elms_quad8), len(elms_seg2)))
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if len(nds) > 0:
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mesh_object = FreeCAD.ActiveDocument.addObject('Fem::FemMeshObject', 'ResultMesh')
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mesh_object.FemMesh = mesh
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