# Unit test for the FEM module # *************************************************************************** # * Copyright (c) 2015 - FreeCAD Developers * # * Author: Przemo Firszt * # * * # * This file is part of the FreeCAD CAx development system. * # * * # * This program is free software; you can redistribute it and/or modify * # * it under the terms of the GNU Lesser General Public License (LGPL) * # * as published by the Free Software Foundation; either version 2 of * # * the License, or (at your option) any later version. * # * for detail see the LICENCE text file. * # * * # * FreeCAD is distributed in the hope that it will be useful, * # * but WITHOUT ANY WARRANTY; without even the implied warranty of * # * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * # * GNU Library General Public License for more details. * # * * # * You should have received a copy of the GNU Library General Public * # * License along with FreeCAD; if not, write to the Free Software * # * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * # * USA * # * * # ***************************************************************************/ import Fem import FemToolsCcx import FreeCAD import ObjectsFem import tempfile import unittest mesh_name = 'Mesh' stat_types = ["U1", "U2", "U3", "Uabs", "Sabs", "MaxPrin", "MidPrin", "MinPrin", "MaxShear", "Peeq", "Temp", "MFlow", "NPress"] home_path = FreeCAD.getHomePath() temp_dir = tempfile.gettempdir() + '/FEM_unittests' test_file_dir = home_path + 'Mod/Fem/test_files/ccx' # define some locations fot the analysis tests # since they are also used in the helper def which create results they should stay global for the module static_base_name = 'cube_static' static_analysis_dir = temp_dir + '/FEM_static' static_save_fc_file = static_analysis_dir + '/' + static_base_name + '.fcstd' static_analysis_inp_file = test_file_dir + '/' + static_base_name + '.inp' static_expected_values = test_file_dir + "/cube_static_expected_values" frequency_base_name = 'cube_frequency' frequency_analysis_dir = temp_dir + '/FEM_frequency' frequency_save_fc_file = frequency_analysis_dir + '/' + frequency_base_name + '.fcstd' frequency_analysis_inp_file = test_file_dir + '/' + frequency_base_name + '.inp' frequency_expected_values = test_file_dir + "/cube_frequency_expected_values" thermomech_base_name = 'spine_thermomech' thermomech_analysis_dir = temp_dir + '/FEM_thermomech' thermomech_save_fc_file = thermomech_analysis_dir + '/' + thermomech_base_name + '.fcstd' thermomech_analysis_inp_file = test_file_dir + '/' + thermomech_base_name + '.inp' thermomech_expected_values = test_file_dir + "/spine_thermomech_expected_values" Flow1D_thermomech_base_name = 'Flow1D_thermomech' Flow1D_thermomech_analysis_dir = temp_dir + '/FEM_Flow1D_thermomech' Flow1D_thermomech_save_fc_file = Flow1D_thermomech_analysis_dir + '/' + Flow1D_thermomech_base_name + '.fcstd' Flow1D_thermomech_analysis_inp_file = test_file_dir + '/' + Flow1D_thermomech_base_name + '.inp' Flow1D_thermomech_expected_values = test_file_dir + "/Flow1D_thermomech_expected_values" class FemTest(unittest.TestCase): def setUp(self): try: FreeCAD.setActiveDocument("FemTest") except: FreeCAD.newDocument("FemTest") finally: FreeCAD.setActiveDocument("FemTest") self.active_doc = FreeCAD.ActiveDocument def test_mesh_seg2_python(self): seg2 = Fem.FemMesh() seg2.addNode(0, 0, 0, 1) seg2.addNode(2, 0, 0, 2) seg2.addNode(4, 0, 0, 3) seg2.addEdge([1, 2]) seg2.addEdge([2, 3], 2) node_data = [seg2.NodeCount, seg2.Nodes] edge_data = [seg2.EdgeCount, seg2.Edges[0], seg2.getElementNodes(seg2.Edges[0]), seg2.Edges[1], seg2.getElementNodes(seg2.Edges[1])] expected_nodes = [3, {1: FreeCAD.Vector(0.0, 0.0, 0.0), 2: FreeCAD.Vector(2.0, 0.0, 0.0), 3: FreeCAD.Vector(4.0, 0.0, 0.0)}] expected_edges = [2, 1, (1, 2), 2, (2, 3)] self.assertEqual(node_data, expected_nodes, "Nodes of Python created seg2 element are unexpected") self.assertEqual(edge_data, expected_edges, "Edges of Python created seg2 element are unexpected") def test_mesh_seg3_python(self): seg3 = Fem.FemMesh() seg3.addNode(0, 0, 0, 1) seg3.addNode(1, 0, 0, 2) seg3.addNode(2, 0, 0, 3) seg3.addNode(3, 0, 0, 4) seg3.addNode(4, 0, 0, 5) seg3.addEdge([1, 3, 2]) seg3.addEdge([3, 5, 4], 2) node_data = [seg3.NodeCount, seg3.Nodes] edge_data = [seg3.EdgeCount, seg3.Edges[0], seg3.getElementNodes(seg3.Edges[0]), seg3.Edges[1], seg3.getElementNodes(seg3.Edges[1])] expected_nodes = [5, {1: FreeCAD.Vector(0.0, 0.0, 0.0), 2: FreeCAD.Vector(1.0, 0.0, 0.0), 3: FreeCAD.Vector(2.0, 0.0, 0.0), 4: FreeCAD.Vector(3.0, 0.0, 0.0), 5: FreeCAD.Vector(4.0, 0.0, 0.0)}] expected_edges = [2, 1, (1, 3, 2), 2, (3, 5, 4)] self.assertEqual(node_data, expected_nodes, "Nodes of Python created seg3 element are unexpected") self.assertEqual(edge_data, expected_edges, "Edges of Python created seg3 element are unexpected") def test_unv_save_load(self): tetra10 = Fem.FemMesh() tetra10.addNode(6, 12, 18, 1) tetra10.addNode(0, 0, 18, 2) tetra10.addNode(12, 0, 18, 3) tetra10.addNode(6, 6, 0, 4) tetra10.addNode(3, 6, 18, 5) tetra10.addNode(6, 0, 18, 6) tetra10.addNode(9, 6, 18, 7) tetra10.addNode(6, 9, 9, 8) tetra10.addNode(3, 3, 9, 9) tetra10.addNode(9, 3, 9, 10) tetra10.addVolume([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]) unv_file = temp_dir + '/tetra10_mesh.unv' tetra10.write(unv_file) newmesh = Fem.read(unv_file) expected = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10) self.assertEqual(newmesh.getElementNodes(1), expected, "Nodes order of quadratic volume element is unexpected") def test_writeAbaqus_precision(self): # https://forum.freecadweb.org/viewtopic.php?f=18&t=22759#p176669 # ccx reads only F20.0 (i. e. Fortran floating point field 20 chars wide) # thus precision is set to 13 in writeAbaqus seg2 = Fem.FemMesh() seg2.addNode(0, 0, 0, 1) # 1234567890123456789012 1234567890123456789012 123456789012345678901234567 seg2.addNode(-5000000000000000000.1, -1.123456789123456e-14, -0.1234567890123456789e-101, 2) seg2.addEdge([1, 2]) inp_file = temp_dir + '/seg2_mesh.inp' seg2.writeABAQUS(inp_file) read_file = open(inp_file, 'r') read_node_line = 'line was not found' for l in read_file: l = l.strip() if l.startswith('2, -5'): read_node_line = l read_file.close() # 1234567 12345678901234567890 12345678901234567890 expected_win = '2, -5e+018, -1.123456789123e-014, -1.234567890123e-102' expected_lin = '2, -5e+18, -1.123456789123e-14, -1.234567890123e-102' expected = [expected_lin, expected_win] self.assertTrue(True if read_node_line in expected else False, "Problem in test_writeAbaqus_precision, \n{0}\n{1}".format(read_node_line, expected)) def tearDown(self): FreeCAD.closeDocument("FemTest") pass class FemCcxAnalysisTest(unittest.TestCase): def setUp(self): try: FreeCAD.setActiveDocument("FemTest") except: FreeCAD.newDocument("FemTest") finally: FreeCAD.setActiveDocument("FemTest") self.active_doc = FreeCAD.ActiveDocument def test_static_freq_analysis(self): # static fcc_print('--------------- Start of FEM tests ---------------') box = self.active_doc.addObject("Part::Box", "Box") fcc_print('Checking FEM new analysis...') analysis = ObjectsFem.makeAnalysis('Analysis') self.assertTrue(analysis, "FemTest of new analysis failed") fcc_print('Checking FEM new solver...') solver_object = ObjectsFem.makeSolverCalculix('CalculiX') solver_object.GeometricalNonlinearity = 'linear' solver_object.ThermoMechSteadyState = False solver_object.MatrixSolverType = 'default' solver_object.IterationsControlParameterTimeUse = False solver_object.EigenmodesCount = 10 solver_object.EigenmodeHighLimit = 1000000.0 solver_object.EigenmodeLowLimit = 0.0 self.assertTrue(solver_object, "FemTest of new solver failed") analysis.Member = analysis.Member + [solver_object] fcc_print('Checking FEM new material...') new_material_object = ObjectsFem.makeMaterialSolid('MechanicalMaterial') mat = new_material_object.Material mat['Name'] = "Steel-Generic" mat['YoungsModulus'] = "200000 MPa" mat['PoissonRatio'] = "0.30" mat['Density'] = "7900 kg/m^3" new_material_object.Material = mat self.assertTrue(new_material_object, "FemTest of new material failed") analysis.Member = analysis.Member + [new_material_object] fcc_print('Checking FEM new fixed constraint...') fixed_constraint = self.active_doc.addObject("Fem::ConstraintFixed", "FemConstraintFixed") fixed_constraint.References = [(box, "Face1")] self.assertTrue(fixed_constraint, "FemTest of new fixed constraint failed") analysis.Member = analysis.Member + [fixed_constraint] fcc_print('Checking FEM new force constraint...') force_constraint = self.active_doc.addObject("Fem::ConstraintForce", "FemConstraintForce") force_constraint.References = [(box, "Face6")] force_constraint.Force = 40000.0 force_constraint.Direction = (box, ["Edge5"]) self.active_doc.recompute() force_constraint.Reversed = True self.active_doc.recompute() self.assertTrue(force_constraint, "FemTest of new force constraint failed") analysis.Member = analysis.Member + [force_constraint] fcc_print('Checking FEM new pressure constraint...') pressure_constraint = self.active_doc.addObject("Fem::ConstraintPressure", "FemConstraintPressure") pressure_constraint.References = [(box, "Face2")] pressure_constraint.Pressure = 1000.0 pressure_constraint.Reversed = False self.assertTrue(pressure_constraint, "FemTest of new pressure constraint failed") analysis.Member = analysis.Member + [pressure_constraint] fcc_print('Checking FEM new mesh...') from test_files.ccx.cube_mesh import create_nodes_cube, create_elements_cube mesh = Fem.FemMesh() ret = create_nodes_cube(mesh) self.assertTrue(ret, "Import of mesh nodes failed") ret = create_elements_cube(mesh) self.assertTrue(ret, "Import of mesh volumes failed") mesh_object = self.active_doc.addObject('Fem::FemMeshObject', mesh_name) mesh_object.FemMesh = mesh self.assertTrue(mesh, "FemTest of new mesh failed") analysis.Member = analysis.Member + [mesh_object] self.active_doc.recompute() fea = FemToolsCcx.FemToolsCcx(analysis, solver_object, test_mode=True) fcc_print('Setting up working directory {}'.format(static_analysis_dir)) fea.setup_working_dir(static_analysis_dir) self.assertTrue(True if fea.working_dir == static_analysis_dir else False, "Setting working directory {} failed".format(static_analysis_dir)) fcc_print('Checking FEM inp file prerequisites for static analysis...') error = fea.check_prerequisites() self.assertFalse(error, "FemToolsCcx check_prerequisites returned error message: {}".format(error)) fcc_print('Checking FEM inp file write...') fcc_print('Setting analysis type to \'static\"') fea.set_analysis_type("static") self.assertTrue(True if fea.analysis_type == 'static' else False, "Setting anlysis type to \'static\' failed") fcc_print('Writing {}/{}.inp for static analysis'.format(static_analysis_dir, mesh_name)) error = fea.write_inp_file() self.assertFalse(error, "Writing failed") fcc_print('Comparing {} to {}/{}.inp'.format(static_analysis_inp_file, static_analysis_dir, mesh_name)) ret = compare_inp_files(static_analysis_inp_file, static_analysis_dir + "/" + mesh_name + '.inp') self.assertFalse(ret, "FemToolsCcx write_inp_file test failed.\n{}".format(ret)) fcc_print('Setting up working directory to {} in order to read simulated calculations'.format(test_file_dir)) fea.setup_working_dir(test_file_dir) self.assertTrue(True if fea.working_dir == test_file_dir else False, "Setting working directory {} failed".format(test_file_dir)) fcc_print('Setting base name to read test {}.frd file...'.format('cube_static')) fea.set_base_name(static_base_name) self.assertTrue(True if fea.base_name == static_base_name else False, "Setting base name to {} failed".format(static_base_name)) fcc_print('Setting inp file name to read test {}.frd file...'.format('cube_static')) fea.set_inp_file_name() self.assertTrue(True if fea.inp_file_name == static_analysis_inp_file else False, "Setting inp file name to {} failed".format(static_analysis_inp_file)) fcc_print('Checking FEM frd file read from static analysis...') fea.load_results() self.assertTrue(fea.results_present, "Cannot read results from {}.frd frd file".format(fea.base_name)) fcc_print('Reading stats from result object for static analysis...') ret = compare_stats(fea, static_expected_values) self.assertFalse(ret, "Invalid results read from .frd file") fcc_print('Save FreeCAD file for static analysis to {}...'.format(static_save_fc_file)) self.active_doc.saveAs(static_save_fc_file) # frequency fcc_print('Setting analysis type to \'frequency\"') fea.set_analysis_type("frequency") self.assertTrue(True if fea.analysis_type == 'frequency' else False, "Setting anlysis type to \'frequency\' failed") fcc_print('Setting up working directory to {} in order to write frequency calculations'.format(frequency_analysis_dir)) fea.setup_working_dir(frequency_analysis_dir) self.assertTrue(True if fea.working_dir == frequency_analysis_dir else False, "Setting working directory {} failed".format(frequency_analysis_dir)) fcc_print('Checking FEM inp file prerequisites for frequency analysis...') error = fea.check_prerequisites() self.assertFalse(error, "FemToolsCcx check_prerequisites returned error message: {}".format(error)) fcc_print('Writing {}/{}.inp for frequency analysis'.format(frequency_analysis_dir, mesh_name)) error = fea.write_inp_file() self.assertFalse(error, "Writing failed") fcc_print('Comparing {} to {}/{}.inp'.format(frequency_analysis_inp_file, frequency_analysis_dir, mesh_name)) ret = compare_inp_files(frequency_analysis_inp_file, frequency_analysis_dir + "/" + mesh_name + '.inp') self.assertFalse(ret, "FemToolsCcx write_inp_file test failed.\n{}".format(ret)) fcc_print('Setting up working directory to {} in order to read simulated calculations'.format(test_file_dir)) fea.setup_working_dir(test_file_dir) self.assertTrue(True if fea.working_dir == test_file_dir else False, "Setting working directory {} failed".format(test_file_dir)) fcc_print('Setting base name to read test {}.frd file...'.format(frequency_base_name)) fea.set_base_name(frequency_base_name) self.assertTrue(True if fea.base_name == frequency_base_name else False, "Setting base name to {} failed".format(frequency_base_name)) fcc_print('Setting inp file name to read test {}.frd file...'.format('cube_frequency')) fea.set_inp_file_name() self.assertTrue(True if fea.inp_file_name == frequency_analysis_inp_file else False, "Setting inp file name to {} failed".format(frequency_analysis_inp_file)) fcc_print('Checking FEM frd file read from frequency analysis...') fea.load_results() self.assertTrue(fea.results_present, "Cannot read results from {}.frd frd file".format(fea.base_name)) fcc_print('Reading stats from result object for frequency analysis...') ret = compare_stats(fea, frequency_expected_values) self.assertFalse(ret, "Invalid results read from .frd file") fcc_print('Save FreeCAD file for frequency analysis to {}...'.format(frequency_save_fc_file)) self.active_doc.saveAs(frequency_save_fc_file) fcc_print('--------------- End of FEM tests static and frequency analysis ---------------') def test_thermomech_analysis(self): fcc_print('--------------- Start of FEM tests ---------------') box = self.active_doc.addObject("Part::Box", "Box") box.Height = 25.4 box.Width = 25.4 box.Length = 203.2 fcc_print('Checking FEM new analysis...') analysis = ObjectsFem.makeAnalysis('Analysis') self.assertTrue(analysis, "FemTest of new analysis failed") fcc_print('Checking FEM new solver...') solver_object = ObjectsFem.makeSolverCalculix('CalculiX') solver_object.AnalysisType = 'thermomech' solver_object.GeometricalNonlinearity = 'linear' solver_object.ThermoMechSteadyState = True solver_object.MatrixSolverType = 'default' solver_object.IterationsThermoMechMaximum = 2000 solver_object.IterationsControlParameterTimeUse = True self.assertTrue(solver_object, "FemTest of new solver failed") analysis.Member = analysis.Member + [solver_object] fcc_print('Checking FEM new material...') new_material_object = ObjectsFem.makeMaterialSolid('MechanicalMaterial') mat = new_material_object.Material mat['Name'] = "Steel-Generic" mat['YoungsModulus'] = "200000 MPa" mat['PoissonRatio'] = "0.30" mat['Density'] = "7900 kg/m^3" mat['ThermalConductivity'] = "43.27 W/m/K" # SvdW: Change to Ansys model values mat['ThermalExpansionCoefficient'] = "12 um/m/K" mat['SpecificHeat'] = "500 J/kg/K" # SvdW: Change to Ansys model values new_material_object.Material = mat self.assertTrue(new_material_object, "FemTest of new material failed") analysis.Member = analysis.Member + [new_material_object] fcc_print('Checking FEM new fixed constraint...') fixed_constraint = self.active_doc.addObject("Fem::ConstraintFixed", "FemConstraintFixed") fixed_constraint.References = [(box, "Face1")] self.assertTrue(fixed_constraint, "FemTest of new fixed constraint failed") analysis.Member = analysis.Member + [fixed_constraint] fcc_print('Checking FEM new initial temperature constraint...') initialtemperature_constraint = self.active_doc.addObject("Fem::ConstraintInitialTemperature", "FemConstraintInitialTemperature") initialtemperature_constraint.initialTemperature = 300.0 self.assertTrue(initialtemperature_constraint, "FemTest of new initial temperature constraint failed") analysis.Member = analysis.Member + [initialtemperature_constraint] fcc_print('Checking FEM new temperature constraint...') temperature_constraint = self.active_doc.addObject("Fem::ConstraintTemperature", "FemConstraintTemperature") temperature_constraint.References = [(box, "Face1")] temperature_constraint.Temperature = 310.93 self.assertTrue(temperature_constraint, "FemTest of new temperature constraint failed") analysis.Member = analysis.Member + [temperature_constraint] fcc_print('Checking FEM new heatflux constraint...') heatflux_constraint = self.active_doc.addObject("Fem::ConstraintHeatflux", "FemConstraintHeatflux") heatflux_constraint.References = [(box, "Face3"), (box, "Face4"), (box, "Face5"), (box, "Face6")] heatflux_constraint.AmbientTemp = 255.3722 heatflux_constraint.FilmCoef = 5.678 self.assertTrue(heatflux_constraint, "FemTest of new heatflux constraint failed") analysis.Member = analysis.Member + [heatflux_constraint] fcc_print('Checking FEM new mesh...') from test_files.ccx.spine_mesh import create_nodes_spine, create_elements_spine mesh = Fem.FemMesh() ret = create_nodes_spine(mesh) self.assertTrue(ret, "Import of mesh nodes failed") ret = create_elements_spine(mesh) self.assertTrue(ret, "Import of mesh volumes failed") mesh_object = self.active_doc.addObject('Fem::FemMeshObject', mesh_name) mesh_object.FemMesh = mesh self.assertTrue(mesh, "FemTest of new mesh failed") analysis.Member = analysis.Member + [mesh_object] self.active_doc.recompute() fea = FemToolsCcx.FemToolsCcx(analysis, test_mode=True) fcc_print('Setting up working directory {}'.format(thermomech_analysis_dir)) fea.setup_working_dir(thermomech_analysis_dir) self.assertTrue(True if fea.working_dir == thermomech_analysis_dir else False, "Setting working directory {} failed".format(thermomech_analysis_dir)) fcc_print('Setting analysis type to \'thermomech\"') fea.set_analysis_type("thermomech") self.assertTrue(True if fea.analysis_type == 'thermomech' else False, "Setting anlysis type to \'thermomech\' failed") fcc_print('Checking FEM inp file prerequisites for thermo-mechanical analysis...') error = fea.check_prerequisites() self.assertFalse(error, "FemToolsCcx check_prerequisites returned error message: {}".format(error)) fcc_print('Checking FEM inp file write...') fcc_print('Writing {}/{}.inp for thermomech analysis'.format(thermomech_analysis_dir, mesh_name)) error = fea.write_inp_file() self.assertFalse(error, "Writing failed") fcc_print('Comparing {} to {}/{}.inp'.format(thermomech_analysis_inp_file, thermomech_analysis_dir, mesh_name)) ret = compare_inp_files(thermomech_analysis_inp_file, thermomech_analysis_dir + "/" + mesh_name + '.inp') self.assertFalse(ret, "FemToolsCcx write_inp_file test failed.\n{}".format(ret)) fcc_print('Setting up working directory to {} in order to read simulated calculations'.format(test_file_dir)) fea.setup_working_dir(test_file_dir) self.assertTrue(True if fea.working_dir == test_file_dir else False, "Setting working directory {} failed".format(test_file_dir)) fcc_print('Setting base name to read test {}.frd file...'.format('spine_thermomech')) fea.set_base_name(thermomech_base_name) self.assertTrue(True if fea.base_name == thermomech_base_name else False, "Setting base name to {} failed".format(thermomech_base_name)) fcc_print('Setting inp file name to read test {}.frd file...'.format('spine_thermomech')) fea.set_inp_file_name() self.assertTrue(True if fea.inp_file_name == thermomech_analysis_inp_file else False, "Setting inp file name to {} failed".format(thermomech_analysis_inp_file)) fcc_print('Checking FEM frd file read from thermomech analysis...') fea.load_results() self.assertTrue(fea.results_present, "Cannot read results from {}.frd frd file".format(fea.base_name)) fcc_print('Reading stats from result object for thermomech analysis...') ret = compare_stats(fea, thermomech_expected_values) self.assertFalse(ret, "Invalid results read from .frd file") fcc_print('Save FreeCAD file for thermomech analysis to {}...'.format(thermomech_save_fc_file)) self.active_doc.saveAs(thermomech_save_fc_file) fcc_print('--------------- End of FEM tests thermomech analysis ---------------') def test_Flow1D_thermomech_analysis(self): fcc_print('--------------- Start of 1D Flow FEM tests ---------------') import Draft p1 = FreeCAD.Vector(0, 0, 50) p2 = FreeCAD.Vector(0, 0, -50) p3 = FreeCAD.Vector(0, 0, -4300) p4 = FreeCAD.Vector(4950, 0, -4300) p5 = FreeCAD.Vector(5000, 0, -4300) p6 = FreeCAD.Vector(8535.53, 0, -7835.53) p7 = FreeCAD.Vector(8569.88, 0, -7870.88) p8 = FreeCAD.Vector(12105.41, 0, -11406.41) p9 = FreeCAD.Vector(12140.76, 0, -11441.76) p10 = FreeCAD.Vector(13908.53, 0, -13209.53) p11 = FreeCAD.Vector(13943.88, 0, -13244.88) p12 = FreeCAD.Vector(15046.97, 0, -14347.97) p13 = FreeCAD.Vector(15046.97, 0, -7947.97) p14 = FreeCAD.Vector(15046.97, 0, -7847.97) p15 = FreeCAD.Vector(0, 0, 0) p16 = FreeCAD.Vector(0, 0, -2175) p17 = FreeCAD.Vector(2475, 0, -4300) p18 = FreeCAD.Vector(4975, 0, -4300) p19 = FreeCAD.Vector(6767.765, 0, -6067.765) p20 = FreeCAD.Vector(8552.705, 0, -7853.205) p21 = FreeCAD.Vector(10337.645, 0, -9638.645) p22 = FreeCAD.Vector(12123.085, 0, -11424.085) p23 = FreeCAD.Vector(13024.645, 0, -12325.645) p24 = FreeCAD.Vector(13926.205, 0, -13227.205) p25 = FreeCAD.Vector(14495.425, 0, -13796.425) p26 = FreeCAD.Vector(15046.97, 0, -11147.97) p27 = FreeCAD.Vector(15046.97, 0, -7897.97) points = [p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11, p12, p13, p14, p15, p16, p17, p18, p19, p20, p21, p22, p23, p24, p25, p26, p27] line = Draft.makeWire(points, closed=False, face=False, support=None) fcc_print('Checking FEM new analysis...') analysis = ObjectsFem.makeAnalysis('Analysis') self.assertTrue(analysis, "FemTest of new analysis failed") fcc_print('Checking FEM new solver...') solver_object = ObjectsFem.makeSolverCalculix('CalculiX') solver_object.AnalysisType = 'thermomech' solver_object.GeometricalNonlinearity = 'linear' solver_object.ThermoMechSteadyState = True solver_object.MatrixSolverType = 'default' solver_object.IterationsThermoMechMaximum = 2000 solver_object.IterationsControlParameterTimeUse = False self.assertTrue(solver_object, "FemTest of new solver failed") analysis.Member = analysis.Member + [solver_object] fcc_print('Checking FEM new material...') new_material_object = ObjectsFem.makeMaterialFluid('FluidMaterial') mat = new_material_object.Material mat['Name'] = "Water" mat['Density'] = "998 kg/m^3" mat['SpecificHeat'] = "4.182 J/kg/K" mat['DynamicViscosity'] = "1.003e-3 kg/m/s" mat['VolumetricThermalExpansionCoefficient'] = "2.07e-4 m/m/K" mat['ThermalConductivity'] = "0.591 W/m/K" new_material_object.Material = mat self.assertTrue(new_material_object, "FemTest of new material failed") analysis.Member = analysis.Member + [new_material_object] fcc_print('Checking FEM Flow1D inlet constraint...') Flow1d_inlet = self.active_doc.addObject("Fem::FeaturePython", "ElementFluid1D") import PyObjects._FemElementFluid1D PyObjects._FemElementFluid1D._FemElementFluid1D(Flow1d_inlet) Flow1d_inlet.SectionType = 'Liquid' Flow1d_inlet.LiquidSectionType = 'PIPE INLET' Flow1d_inlet.InletPressure = 0.1 Flow1d_inlet.References = [(line, "Edge1")] self.assertTrue(Flow1d_inlet, "FemTest of new Flow1D inlet constraint failed") analysis.Member = analysis.Member + [Flow1d_inlet] fcc_print('Checking FEM new Flow1D entrance constraint...') Flow1d_entrance = self.active_doc.addObject("Fem::FeaturePython", "ElementFluid1D") import PyObjects._FemElementFluid1D PyObjects._FemElementFluid1D._FemElementFluid1D(Flow1d_entrance) Flow1d_entrance.SectionType = 'Liquid' Flow1d_entrance.LiquidSectionType = 'PIPE ENTRANCE' Flow1d_entrance.EntrancePipeArea = 31416.00 Flow1d_entrance.EntranceArea = 25133.00 Flow1d_entrance.References = [(line, "Edge2")] self.assertTrue(Flow1d_entrance, "FemTest of new Flow1D entrance constraint failed") analysis.Member = analysis.Member + [Flow1d_entrance] fcc_print('Checking FEM new Flow1D manning constraint...') Flow1d_manning = self.active_doc.addObject("Fem::FeaturePython", "ElementFluid1D") import PyObjects._FemElementFluid1D PyObjects._FemElementFluid1D._FemElementFluid1D(Flow1d_manning) Flow1d_manning.SectionType = 'Liquid' Flow1d_manning.LiquidSectionType = 'PIPE MANNING' Flow1d_manning.ManningArea = 31416 Flow1d_manning.ManningRadius = 50 Flow1d_manning.ManningCoefficient = 0.002 Flow1d_manning.References = [(line, "Edge3"), (line, "Edge5")] self.assertTrue(Flow1d_manning, "FemTest of new Flow1D manning constraint failed") analysis.Member = analysis.Member + [Flow1d_manning] fcc_print('Checking FEM new Flow1D bend constraint...') Flow1d_bend = self.active_doc.addObject("Fem::FeaturePython", "ElementFluid1D") import PyObjects._FemElementFluid1D PyObjects._FemElementFluid1D._FemElementFluid1D(Flow1d_bend) Flow1d_bend.SectionType = 'Liquid' Flow1d_bend.LiquidSectionType = 'PIPE BEND' Flow1d_bend.BendPipeArea = 31416 Flow1d_bend.BendRadiusDiameter = 1.5 Flow1d_bend.BendAngle = 45 Flow1d_bend.BendLossCoefficient = 0.4 Flow1d_bend.References = [(line, "Edge4")] self.assertTrue(Flow1d_bend, "FemTest of new Flow1D bend constraint failed") analysis.Member = analysis.Member + [Flow1d_bend] fcc_print('Checking FEM new Flow1D enlargement constraint...') Flow1d_enlargement = self.active_doc.addObject("Fem::FeaturePython", "ElementFluid1D") import PyObjects._FemElementFluid1D PyObjects._FemElementFluid1D._FemElementFluid1D(Flow1d_enlargement) Flow1d_enlargement.SectionType = 'Liquid' Flow1d_enlargement.LiquidSectionType = 'PIPE ENLARGEMENT' Flow1d_enlargement.EnlargeArea1 = 31416.00 Flow1d_enlargement.EnlargeArea2 = 70686.00 Flow1d_enlargement.References = [(line, "Edge6")] self.assertTrue(Flow1d_enlargement, "FemTest of new Flow1D enlargement constraint failed") analysis.Member = analysis.Member + [Flow1d_enlargement] fcc_print('Checking FEM new Flow1D manning constraint...') Flow1d_manning1 = self.active_doc.addObject("Fem::FeaturePython", "ElementFluid1D") import PyObjects._FemElementFluid1D PyObjects._FemElementFluid1D._FemElementFluid1D(Flow1d_manning1) Flow1d_manning1.SectionType = 'Liquid' Flow1d_manning1.LiquidSectionType = 'PIPE MANNING' Flow1d_manning1.ManningArea = 70686.00 Flow1d_manning1.ManningRadius = 75 Flow1d_manning1.ManningCoefficient = 0.002 Flow1d_manning1.References = [(line, "Edge7")] self.assertTrue(Flow1d_manning1, "FemTest of new Flow1D manning constraint failed") analysis.Member = analysis.Member + [Flow1d_manning1] fcc_print('Checking FEM new Flow1D contraction constraint...') Flow1d_contraction = self.active_doc.addObject("Fem::FeaturePython", "ElementFluid1D") import PyObjects._FemElementFluid1D PyObjects._FemElementFluid1D._FemElementFluid1D(Flow1d_contraction) Flow1d_contraction.SectionType = 'Liquid' Flow1d_contraction.LiquidSectionType = 'PIPE CONTRACTION' Flow1d_contraction.ContractArea1 = 70686 Flow1d_contraction.ContractArea2 = 17671 Flow1d_contraction.References = [(line, "Edge8")] self.assertTrue(Flow1d_contraction, "FemTest of new Flow1D contraction constraint failed") analysis.Member = analysis.Member + [Flow1d_contraction] fcc_print('Checking FEM new Flow1D manning constraint...') Flow1d_manning2 = self.active_doc.addObject("Fem::FeaturePython", "ElementFluid1D") import PyObjects._FemElementFluid1D PyObjects._FemElementFluid1D._FemElementFluid1D(Flow1d_manning2) Flow1d_manning2.SectionType = 'Liquid' Flow1d_manning2.LiquidSectionType = 'PIPE MANNING' Flow1d_manning2.ManningArea = 17671.00 Flow1d_manning2.ManningRadius = 37.5 Flow1d_manning2.ManningCoefficient = 0.002 Flow1d_manning2.References = [(line, "Edge11"), (line, "Edge9")] self.assertTrue(Flow1d_manning2, "FemTest of new Flow1D manning constraint failed") analysis.Member = analysis.Member + [Flow1d_manning2] fcc_print('Checking FEM new Flow1D gate valve constraint...') Flow1d_gate_valve = self.active_doc.addObject("Fem::FeaturePython", "ElementFluid1D") import PyObjects._FemElementFluid1D PyObjects._FemElementFluid1D._FemElementFluid1D(Flow1d_gate_valve) Flow1d_gate_valve.SectionType = 'Liquid' Flow1d_gate_valve.LiquidSectionType = 'PIPE GATE VALVE' Flow1d_gate_valve.GateValvePipeArea = 17671 Flow1d_gate_valve.GateValveClosingCoeff = 0.5 Flow1d_gate_valve.References = [(line, "Edge10")] self.assertTrue(Flow1d_gate_valve, "FemTest of new Flow1D gate valve constraint failed") analysis.Member = analysis.Member + [Flow1d_gate_valve] fcc_print('Checking FEM new Flow1D enlargement constraint...') Flow1d_enlargement1 = self.active_doc.addObject("Fem::FeaturePython", "ElementFluid1D") import PyObjects._FemElementFluid1D PyObjects._FemElementFluid1D._FemElementFluid1D(Flow1d_enlargement1) Flow1d_enlargement1.SectionType = 'Liquid' Flow1d_enlargement1.LiquidSectionType = 'PIPE ENLARGEMENT' Flow1d_enlargement1.EnlargeArea1 = 17671 Flow1d_enlargement1.EnlargeArea2 = 1e12 Flow1d_enlargement1.References = [(line, "Edge12")] self.assertTrue(Flow1d_enlargement1, "FemTest of new Flow1D enlargement constraint failed") analysis.Member = analysis.Member + [Flow1d_enlargement1] fcc_print('Checking FEM Flow1D outlet constraint...') Flow1d_outlet = self.active_doc.addObject("Fem::FeaturePython", "ElementFluid1D") import PyObjects._FemElementFluid1D PyObjects._FemElementFluid1D._FemElementFluid1D(Flow1d_outlet) Flow1d_outlet.SectionType = 'Liquid' Flow1d_outlet.LiquidSectionType = 'PIPE OUTLET' Flow1d_outlet.OutletPressure = 0.1 Flow1d_outlet.References = [(line, "Edge13")] self.assertTrue(Flow1d_outlet, "FemTest of new Flow1D inlet constraint failed") analysis.Member = analysis.Member + [Flow1d_outlet] fcc_print('Checking FEM self weight constraint...') Flow1d_self_weight = self.active_doc.addObject("Fem::FeaturePython", "ConstraintSelfWeight") import PyObjects._FemConstraintSelfWeight PyObjects._FemConstraintSelfWeight._FemConstraintSelfWeight(Flow1d_self_weight) Flow1d_self_weight.Gravity_x = 0.0 Flow1d_self_weight.Gravity_y = 0.0 Flow1d_self_weight.Gravity_z = -1.0 self.assertTrue(Flow1d_outlet, "FemTest of new Flow1D self weight constraint failed") analysis.Member = analysis.Member + [Flow1d_self_weight] fcc_print('Checking FEM new mesh...') from test_files.ccx.Flow1D_mesh import create_nodes_Flow1D, create_elements_Flow1D mesh = Fem.FemMesh() ret = create_nodes_Flow1D(mesh) self.assertTrue(ret, "Import of mesh nodes failed") ret = create_elements_Flow1D(mesh) self.assertTrue(ret, "Import of mesh volumes failed") mesh_object = self.active_doc.addObject('Fem::FemMeshObject', mesh_name) mesh_object.FemMesh = mesh self.assertTrue(mesh, "FemTest of new mesh failed") analysis.Member = analysis.Member + [mesh_object] self.active_doc.recompute() fea = FemToolsCcx.FemToolsCcx(analysis, test_mode=True) fcc_print('Setting up working directory {}'.format(Flow1D_thermomech_analysis_dir)) fea.setup_working_dir(Flow1D_thermomech_analysis_dir) self.assertTrue(True if fea.working_dir == Flow1D_thermomech_analysis_dir else False, "Setting working directory {} failed".format(Flow1D_thermomech_analysis_dir)) fcc_print('Setting analysis type to \'thermomech\"') fea.set_analysis_type("thermomech") self.assertTrue(True if fea.analysis_type == 'thermomech' else False, "Setting anlysis type to \'thermomech\' failed") fcc_print('Checking FEM inp file prerequisites for thermo-mechanical analysis...') error = fea.check_prerequisites() self.assertFalse(error, "FemToolsCcx check_prerequisites returned error message: {}".format(error)) fcc_print('Checking FEM inp file write...') fcc_print('Writing {}/{}.inp for thermomech analysis'.format(Flow1D_thermomech_analysis_dir, mesh_name)) error = fea.write_inp_file() self.assertFalse(error, "Writing failed") fcc_print('Comparing {} to {}/{}.inp'.format(Flow1D_thermomech_analysis_inp_file, Flow1D_thermomech_analysis_dir, mesh_name)) ret = compare_inp_files(Flow1D_thermomech_analysis_inp_file, Flow1D_thermomech_analysis_dir + "/" + mesh_name + '.inp') self.assertFalse(ret, "FemToolsCcx write_inp_file test failed.\n{}".format(ret)) fcc_print('Setting up working directory to {} in order to read simulated calculations'.format(test_file_dir)) fea.setup_working_dir(test_file_dir) self.assertTrue(True if fea.working_dir == test_file_dir else False, "Setting working directory {} failed".format(test_file_dir)) fcc_print('Setting base name to read test {}.frd file...'.format('Flow1D_thermomech')) fea.set_base_name(Flow1D_thermomech_base_name) self.assertTrue(True if fea.base_name == Flow1D_thermomech_base_name else False, "Setting base name to {} failed".format(Flow1D_thermomech_base_name)) fcc_print('Setting inp file name to read test {}.frd file...'.format('Flow1D_thermomech')) fea.set_inp_file_name() self.assertTrue(True if fea.inp_file_name == Flow1D_thermomech_analysis_inp_file else False, "Setting inp file name to {} failed".format(Flow1D_thermomech_analysis_inp_file)) fcc_print('Checking FEM frd file read from Flow1D thermomech analysis...') fea.load_results() self.assertTrue(fea.results_present, "Cannot read results from {}.frd frd file".format(fea.base_name)) fcc_print('Reading stats from result object for Flow1D thermomech analysis...') ret = compare_stats(fea, Flow1D_thermomech_expected_values, ["U1", "U2", "U3", "Uabs", "Sabs"]) # TODO use all result stats self.assertFalse(ret, "Invalid results read from .frd file") fcc_print('Save FreeCAD file for thermomech analysis to {}...'.format(Flow1D_thermomech_save_fc_file)) self.active_doc.saveAs(Flow1D_thermomech_save_fc_file) fcc_print('--------------- End of FEM tests FLow 1D thermomech analysis ---------------') def tearDown(self): FreeCAD.closeDocument("FemTest") pass # helpers def fcc_print(message): FreeCAD.Console.PrintMessage('{} \n'.format(message)) def compare_inp_files(file_name1, file_name2): file1 = open(file_name1, 'r') f1 = file1.readlines() file1.close() # l.startswith('17671.0,1') is a temporary workaround for python3 problem with 1DFlow input # TODO as soon as the 1DFlow result reading is fixed, this should be triggered in the 1DFlow unit test lf1 = [l for l in f1 if not (l.startswith('** written ') or l.startswith('** file ') or l.startswith('17671.0,1'))] lf1 = force_unix_line_ends(lf1) file2 = open(file_name2, 'r') f2 = file2.readlines() file2.close() # TODO see comment on file1 lf2 = [l for l in f2 if not (l.startswith('** written ') or l.startswith('** file ') or l.startswith('17671.0,1'))] lf2 = force_unix_line_ends(lf2) import difflib diff = difflib.unified_diff(lf1, lf2, n=0) result = '' for l in diff: result += l if result: result = "Comparing {} to {} failed!\n".format(file_name1, file_name2) + result return result def compare_stats(fea, stat_file=None, loc_stat_types=None): if not loc_stat_types: loc_stat_types = stat_types if stat_file: sf = open(stat_file, 'r') sf_content = [] for l in sf.readlines(): for st in loc_stat_types: if l.startswith(st): sf_content.append(l) sf.close() sf_content = force_unix_line_ends(sf_content) stats = [] for s in loc_stat_types: statval = fea.get_stats(s) stats.append("{0}: ({1:.14g}, {2:.14g}, {3:.14g})\n".format(s, statval[0], statval[1], statval[2])) if sf_content != stats: fcc_print("Expected stats from {}".format(stat_file)) fcc_print(sf_content) fcc_print("Stats read from {}.frd file".format(fea.base_name)) fcc_print(stats) return True return False def force_unix_line_ends(line_list): new_line_list = [] for l in line_list: if l.endswith("\r\n"): l = l[:-2] + '\n' new_line_list.append(l) return new_line_list def runTestFem(): '''run FEM unit test for more information on how to run a specific test class or a test def see file src/Mod/Test/__init__ https://forum.freecadweb.org/viewtopic.php?f=10&t=22190#p175546 ''' import Test import sys current_module = sys.modules[__name__] Test.runTestsFromModule(current_module) def create_test_results(): # run FEM unit tests runTestFem() import os import shutil import FemGui import FemToolsCcx # static and frequency cube FreeCAD.open(static_save_fc_file) FemGui.setActiveAnalysis(FreeCAD.ActiveDocument.Analysis) fea = FemToolsCcx.FemToolsCcx() # static fea.reset_all() fea.run() fea.load_results() stats_static = [] # we only have one result object so we are fine for s in stat_types: statval = fea.get_stats(s) stats_static.append("{0}: ({1:.14g}, {2:.14g}, {3:.14g})\n".format(s, statval[0], statval[1], statval[2])) static_expected_values_file = static_analysis_dir + '/cube_static_expected_values' f = open(static_expected_values_file, 'w') for s in stats_static: f.write(s) f.close() # could be added in FemToolsCcx to the self object as an Attribut frd_result_file = os.path.splitext(fea.inp_file_name)[0] + '.frd' dat_result_file = os.path.splitext(fea.inp_file_name)[0] + '.dat' frd_static_test_result_file = static_analysis_dir + '/cube_static.frd' dat_static_test_result_file = static_analysis_dir + '/cube_static.dat' shutil.copyfile(frd_result_file, frd_static_test_result_file) shutil.copyfile(dat_result_file, dat_static_test_result_file) # frequency fea.reset_all() fea.set_analysis_type('frequency') fea.solver.EigenmodesCount = 1 # we should only have one result object fea.run() fea.load_results() stats_frequency = [] # since we set eigenmodeno. we only have one result object so we are fine for s in stat_types: statval = fea.get_stats(s) stats_frequency.append("{0}: ({1:.14g}, {2:.14g}, {3:.14g})\n".format(s, statval[0], statval[1], statval[2])) frequency_expected_values_file = frequency_analysis_dir + '/cube_frequency_expected_values' f = open(frequency_expected_values_file, 'w') for s in stats_frequency: f.write(s) f.close() frd_frequency_test_result_file = frequency_analysis_dir + '/cube_frequency.frd' dat_frequency_test_result_file = frequency_analysis_dir + '/cube_frequency.dat' shutil.copyfile(frd_result_file, frd_frequency_test_result_file) shutil.copyfile(dat_result_file, dat_frequency_test_result_file) # thermomech FreeCAD.open(thermomech_save_fc_file) FemGui.setActiveAnalysis(FreeCAD.ActiveDocument.Analysis) fea = FemToolsCcx.FemToolsCcx() fea.reset_all() fea.run() fea.load_results() stats_thermomech = [] # we only have one result object so we are fine for s in stat_types: statval = fea.get_stats(s) stats_thermomech.append("{0}: ({1:.14g}, {2:.14g}, {3:.14g})\n".format(s, statval[0], statval[1], statval[2])) thermomech_expected_values_file = thermomech_analysis_dir + '/spine_thermomech_expected_values' f = open(thermomech_expected_values_file, 'w') for s in stats_thermomech: f.write(s) f.close() # could be added in FemToolsCcx to the self object as an Attribut frd_result_file = os.path.splitext(fea.inp_file_name)[0] + '.frd' dat_result_file = os.path.splitext(fea.inp_file_name)[0] + '.dat' frd_thermomech_test_result_file = thermomech_analysis_dir + '/spine_thermomech.frd' dat_thermomech_test_result_file = thermomech_analysis_dir + '/spine_thermomech.dat' shutil.copyfile(frd_result_file, frd_thermomech_test_result_file) shutil.copyfile(dat_result_file, dat_thermomech_test_result_file) print('Results copied to the appropriate FEM test dirs in: ' + temp_dir) ''' update the results of FEM unit tests: import TestFem TestFem.create_test_results() copy result files from your_temp_directory/FEM_unittests/ test directories into the src dirctory compare the results with git difftool run make start FreeCAD and run FEM unit test if FEM unit test is fine --> commit new FEM unit test results TODO compare the inp file of the helper with the inp file of FEM unit tests TODO the better way: move the result creation inside the TestFem and add some preference to deactivate this because it needs ccx '''