121 lines
3.5 KiB
C
121 lines
3.5 KiB
C
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright held by original author
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM 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 2 of the License, or (at your
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option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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 OpenFOAM; if not, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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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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