212 lines
5.9 KiB
C
212 lines
5.9 KiB
C
/*---------------------------------------------------------------------------*\
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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 (C) 2004-2007 Hrvoje Jasak
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Application
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elasticPlasticSolidFoam
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Description
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Transient/steady-state segregated finite-volume solver for large strain
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elastic plastic solid bodies.
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Displacement increment field DU is solved for using an updated Lagrangian
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approach, also generating the strain field epsilon, the plastic strain
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field epsilonP and the stress tensor field sigma.
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With optional multi-material solid interface correction ensuring
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correct tractions on multi-material interfaces, HOWEVER, tractions
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on interface will be incorrect when there is plasticity or large strain
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in the interface cells. Correction needs to be derived for plasticity
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and large strain.
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Author
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Philip Cardiff
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multi-material by Tukovic et al. 2012
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\*---------------------------------------------------------------------------*/
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#include "fvCFD.H"
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#include "plasticityModel.H"
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#include "solidInterface.H"
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#include "volPointInterpolation.H"
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#include "pointPatchInterpolation.H"
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#include "primitivePatchInterpolation.H"
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#include "twoDPointCorrector.H"
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#include "pointFields.H"
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#include "plane.H"
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#include "meshSearch.H"
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#include "leastSquaresVolPointInterpolation.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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# include "readDivDSigmaExpMethod.H"
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# include "readDivDSigmaLargeStrainExpMethod.H"
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# include "readMoveMeshMethod.H"
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# include "createSolidInterface.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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Info << "\nStarting time loop\n" << endl;
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for (runTime++; !runTime.end(); runTime++)
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{
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Info<< "Time: " << runTime.timeName() << nl << endl;
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# include "readStressedFoamControls.H"
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int iCorr = 0;
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lduMatrix::solverPerformance solverPerf;
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scalar initialResidual = 0;
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scalar relativeResidual = GREAT;
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lduMatrix::debug = 0;
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const volSymmTensorField& DEpsilonP = rheology.DEpsilonP();
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do
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{
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DU.storePrevIter();
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divDSigmaLargeStrainExp.storePrevIter();
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# include "calculateDivDSigmaExp.H"
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# include "calculateDivDSigmaLargeStrainExp.H"
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//----------------------------------------------------//
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//- updated lagrangian large strain momentum equation
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//----------------------------------------------------//
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fvVectorMatrix DUEqn
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(
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fvm::d2dt2(rho, DU)
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==
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fvm::laplacian(2*muf + lambdaf, DU, "laplacian(DDU,DU)")
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+ divDSigmaExp
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+ divDSigmaLargeStrainExp
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- fvc::div(2*muf*(mesh.Sf() & fvc::interpolate(DEpsilonP)))
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);
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if(solidInterfaceCorr)
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{
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solidInterfacePtr->correct(DUEqn);
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}
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solverPerf = DUEqn.solve();
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if(iCorr == 0)
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{
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initialResidual = solverPerf.initialResidual();
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}
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DU.relax();
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if(solidInterfaceCorr)
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{
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gradDU = solidInterfacePtr->grad(DU);
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}
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else
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{
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gradDU = fvc::grad(DU);
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}
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DF = gradDU.T();
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# include "calculateRelativeResidual.H"
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rheology.correct();
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mu = rheology.newMu();
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lambda = rheology.newLambda();
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muf = fvc::interpolate(rheology.newMu());
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lambdaf = fvc::interpolate(rheology.newLambda());
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if(solidInterfaceCorr)
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{
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solidInterfacePtr->modifyProperties(muf, lambdaf);
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}
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# include "calculateDEpsilonDSigma.H"
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Info << "\tTime " << runTime.value()
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<< ", Corrector " << iCorr
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<< ", Solving for " << DU.name()
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<< " using " << solverPerf.solverName()
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<< ", residual = " << solverPerf.initialResidual()
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<< ", relative residual = " << relativeResidual << endl;
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}
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while
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(
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//relativeResidual
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solverPerf.initialResidual() > convergenceTolerance
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&& ++iCorr < nCorr
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);
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Info << nl << "Time " << runTime.value() << ", Solving for " << DU.name()
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<< ", Initial residual = " << initialResidual
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<< ", Final residual = " << solverPerf.initialResidual()
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<< ", No outer iterations " << iCorr << endl;
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lduMatrix::debug = 1;
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U += DU;
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epsilon += DEpsilon;
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epsilonP += DEpsilonP;
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volSymmTensorField DEpsilonE = DEpsilon - DEpsilonP;
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epsilonE += DEpsilonE;
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sigma += DSigma;
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rheology.updateYieldStress();
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# include "rotateFields.H"
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# include "moveMesh.H"
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# include "writeFields.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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