119 lines
3.5 KiB
C++
119 lines
3.5 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration | Version: 4.1
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\\ / A nd | Web: http://www.foam-extend.org
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\\/ M anipulation | For copyright notice see file Copyright
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-------------------------------------------------------------------------------
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License
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This file is part of foam-extend.
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foam-extend is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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foam-extend is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with foam-extend. If not, see <http://www.gnu.org/licenses/>.
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Application
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stressedFoam
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Description
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Transient/steady-state solver of linear-elastic, small-strain deformation
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of solid bodies in contact.
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Simple linear elasticity structural analysis code.
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Solves for the displacement vector field U,
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also generating the stress tensor field sigma.
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Code can be compiled for simple stress analysis,
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and dynamic stress analysis.
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Additionally, special handling of very non-orthogonal meshes may be added.
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\*---------------------------------------------------------------------------*/
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#include "fvCFD.H"
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#include "fixedGradientFvPatchFields.H"
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#include "directionMixedFvPatchFields.H"
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#include "contactPatchPair.H"
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#include "pointFields.H"
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#include "transformField.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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int main(int argc, char *argv[])
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{
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# include "setRootCase.H"
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# include "createTime.H"
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# include "createMesh.H"
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# include "createFields.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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Info<< "\nCalculating displacement field\n" << endl;
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volTensorField gradU = fvc::grad(U);
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for (runTime++; !runTime.end(); runTime++)
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{
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Info<< "Iteration: " << runTime.timeName() << nl << endl;
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# include "../stressedFoam/readStressedFoamControls.H"
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int iCorr=0;
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scalar initialResidual=0;
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# include "contactBoundaries.H"
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do
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{
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# include "tractionBoundaries.H"
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fvVectorMatrix UEqn
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(
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# ifdef Dynamic
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fvm::d2dt2(U)
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==
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# endif
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fvm::laplacian(2*mu + lambda, U, "laplacian(DU,U)")
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+ fvc::div
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(
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mu*gradU.T() + lambda*(I*tr(gradU)) - (mu + lambda)*gradU,
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"div(sigma)"
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)
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);
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UEqn.setComponentReference(6, 0, vector::Z, 0);
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initialResidual = UEqn.solve().initialResidual();
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gradU = fvc::grad(U);
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} while (initialResidual > convergenceTolerance && ++iCorr < nCorr);
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# include "calculateStress.H"
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Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
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<< " ClockTime = " << runTime.elapsedClockTime() << " s"
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<< nl << endl;
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}
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Info<< "End\n" << endl;
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return(0);
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}
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// ************************************************************************* //
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