101 lines
4.7 KiB
Python
101 lines
4.7 KiB
Python
# ***************************************************************************
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# * Copyright (c) 2021 Bernd Hahnebach <bernd@bimstatik.org> *
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# * *
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# * This file is part of the FreeCAD CAx development system. *
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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__ = "FreeCAD FEM calculix write inpfile mesh"
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__author__ = "Bernd Hahnebach"
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__url__ = "https://www.freecad.org"
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import codecs
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from os.path import join
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from femmesh import meshtools
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def write_mesh(ccxwriter):
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element_param = 1 # highest element order only
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group_param = False # do not write mesh group data
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if ccxwriter.split_inpfile is True:
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write_name = "femesh"
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file_name_split = ccxwriter.mesh_name + "_" + write_name + ".inp"
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ccxwriter.femmesh_file = join(ccxwriter.dir_name, file_name_split)
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ccxwriter.femmesh.writeABAQUS(
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ccxwriter.femmesh_file,
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element_param,
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group_param
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)
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# Check to see if fluid sections are in analysis and use D network element type
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if ccxwriter.member.geos_fluidsection:
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meshtools.write_D_network_element_to_inputfile(ccxwriter.femmesh_file)
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# Use reduced integration beam elements if this option is enabled in ccx solver settings
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if ccxwriter.solver_obj.BeamReducedIntegration:
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meshtools.beam_reduced_integration(ccxwriter.femmesh_file)
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# Use 2D elements if model space is not set to 3D
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if ccxwriter.solver_obj.ModelSpace == "plane stress":
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meshtools.plane_stress(ccxwriter.femmesh_file)
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if ccxwriter.solver_obj.ModelSpace == "plane strain":
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meshtools.plane_strain(ccxwriter.femmesh_file)
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if ccxwriter.solver_obj.ModelSpace == "axisymmetric":
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meshtools.axisymmetric(ccxwriter.femmesh_file)
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inpfile = codecs.open(ccxwriter.file_name, "w", encoding="utf-8")
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inpfile.write("{}\n".format(59 * "*"))
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inpfile.write("** {}\n".format(write_name))
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inpfile.write("*INCLUDE,INPUT={}\n".format(file_name_split))
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else:
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ccxwriter.femmesh_file = ccxwriter.file_name
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ccxwriter.femmesh.writeABAQUS(
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ccxwriter.femmesh_file,
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element_param,
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group_param
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)
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# Check to see if fluid sections are in analysis and use D network element type
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if ccxwriter.member.geos_fluidsection:
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# inpfile is closed
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meshtools.write_D_network_element_to_inputfile(ccxwriter.femmesh_file)
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# Use reduced integration beam elements if this option is enabled in ccx solver settings
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if ccxwriter.solver_obj.BeamReducedIntegration:
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meshtools.beam_reduced_integration(ccxwriter.femmesh_file)
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# Use 2D elements if model space is not set to 3D
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if ccxwriter.solver_obj.ModelSpace == "plane stress":
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meshtools.plane_stress(ccxwriter.femmesh_file)
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if ccxwriter.solver_obj.ModelSpace == "plane strain":
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meshtools.plane_strain(ccxwriter.femmesh_file)
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if ccxwriter.solver_obj.ModelSpace == "axisymmetric":
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meshtools.axisymmetric(ccxwriter.femmesh_file)
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# reopen file with "append" to add all the rest
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inpfile = codecs.open(ccxwriter.femmesh_file, "a", encoding="utf-8")
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inpfile.write("\n\n")
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return inpfile
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