121 lines
4.5 KiB
Python
121 lines
4.5 KiB
Python
# ***************************************************************************
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# * Copyright (c) 2019 Bernd Hahnebach <bernd@bimstatik.org> *
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# * Copyright (c) 2020 Sudhanshu Dubey <sudhanshu.thethunder@gmail.com *
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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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import FreeCAD
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import ObjectsFem
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from . import manager
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from .boxanalysis_base import setup_boxanalysisbase
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from .manager import init_doc
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def get_information():
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return {
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"name": "Box Analysis Static",
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"meshtype": "solid",
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"meshelement": "Tet10",
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"constraints": ["fixed", "force", "pressure"],
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"solvers": ["ccxtools", "elmer"],
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"material": "solid",
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"equations": ["mechanical"],
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}
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def get_explanation(header=""):
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return (
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header
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+ """
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To run the example from Python console use:
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from femexamples.boxanalysis_static import setup
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setup()
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See forum topic post:
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...
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"""
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)
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def setup(doc=None, solvertype="ccxtools"):
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# init FreeCAD document
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if doc is None:
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doc = init_doc()
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# explanation object
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# just keep the following line and change text string in get_explanation method
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manager.add_explanation_obj(doc, get_explanation(manager.get_header(get_information())))
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# setup box static, add a fixed, force and a pressure constraint
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doc = setup_boxanalysisbase(doc, solvertype)
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geom_obj = doc.Box
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analysis = doc.Analysis
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# solver
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if solvertype == "ccxtools":
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solver_obj = ObjectsFem.makeSolverCalculiXCcxTools(doc, "CalculiXCcxTools")
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solver_obj.WorkingDir = ""
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elif solvertype == "elmer":
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solver_obj = ObjectsFem.makeSolverElmer(doc, "SolverElmer")
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ObjectsFem.makeEquationElasticity(doc, solver_obj)
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else:
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FreeCAD.Console.PrintWarning(
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"Unknown or unsupported solver type: {}. "
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"No solver object was created.\n".format(solvertype)
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)
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if solvertype == "ccxtools":
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solver_obj.SplitInputWriter = False
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solver_obj.AnalysisType = "static"
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solver_obj.GeometricalNonlinearity = "linear"
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solver_obj.ThermoMechSteadyState = False
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solver_obj.MatrixSolverType = "default"
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solver_obj.IterationsControlParameterTimeUse = False
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analysis.addObject(solver_obj)
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# constraint fixed
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con_fixed = ObjectsFem.makeConstraintFixed(doc, "FemConstraintFixed")
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con_fixed.References = [(geom_obj, "Face1")]
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analysis.addObject(con_fixed)
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# constraint force
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con_force = ObjectsFem.makeConstraintForce(doc, "FemConstraintForce")
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con_force.References = [(geom_obj, "Face6")]
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con_force.Force = "40000.0 N"
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con_force.Direction = (geom_obj, ["Edge5"])
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con_force.Reversed = True
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analysis.addObject(con_force)
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# constraint pressure
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con_pressure = ObjectsFem.makeConstraintPressure(doc, name="FemConstraintPressure")
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con_pressure.References = [(geom_obj, "Face2")]
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con_pressure.Pressure = "1000.0 MPa"
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con_pressure.Reversed = False
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analysis.addObject(con_pressure)
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doc.recompute()
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return doc
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