119 lines
3.6 KiB
C++
119 lines
3.6 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration | Version: 4.0
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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 segregated finite-volume solver of linear-elastic,
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small-strain deformation of a solid body, with optional thermal
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diffusion and thermal stresses.
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Simple linear elasticity structural analysis code.
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Solves for the displacement vector field U, also generating the
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stress tensor field sigma.
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\*---------------------------------------------------------------------------*/
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#include "fvCFD.H"
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#include "Switch.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 "readMechanicalProperties.H"
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# include "readThermalProperties.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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for (runTime++; !runTime.end(); runTime++)
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{
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Info<< "Iteration: " << runTime.timeName() << nl << endl;
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# include "readStressedFoamControls.H"
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int iCorr = 0;
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scalar initialResidual = 0;
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do
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{
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volTensorField gradU = fvc::grad(U);
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if (thermalStress)
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{
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solve
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(
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fvm::ddt(T) == fvm::laplacian(DT, T)
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);
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}
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fvVectorMatrix UEqn
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(
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fvm::d2dt2(U)
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==
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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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if (thermalStress)
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{
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UEqn += threeKalpha*fvc::grad(T);
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}
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//UEqn.setComponentReference(1, 0, vector::X, 0);
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//UEqn.setComponentReference(1, 0, vector::Z, 0);
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initialResidual = UEqn.solve().initialResidual();
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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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deleteDemandDrivenData(Tptr);
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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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