140 lines
4.2 KiB
C
140 lines
4.2 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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solidDisplacementFoam
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Description
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Transient 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 D, 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 "readSolidDisplacementFoamControls.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.value() << nl << endl;
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# include "readSolidDisplacementFoamControls.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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if (thermalStress)
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{
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volScalarField& T = Tptr();
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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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{
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fvVectorMatrix DEqn
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(
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fvm::d2dt2(D)
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==
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fvm::laplacian(2*mu + lambda, D, "laplacian(DD,D)")
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+ divSigmaExp
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);
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if (thermalStress)
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{
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const volScalarField& T = Tptr();
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DEqn += fvc::grad(threeKalpha*T);
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}
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//DEqn.setComponentReference(1, 0, vector::X, 0);
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//DEqn.setComponentReference(1, 0, vector::Z, 0);
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initialResidual = DEqn.solve().initialResidual();
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if (!compactNormalStress)
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{
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divSigmaExp = fvc::div(DEqn.flux());
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}
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}
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{
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volTensorField gradD = fvc::grad(D);
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sigmaD = mu*twoSymm(gradD) + (lambda*I)*tr(gradD);
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if (compactNormalStress)
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{
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divSigmaExp = fvc::div
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(
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sigmaD - (2*mu + lambda)*gradD,
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"div(sigmaD)"
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);
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}
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else
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{
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divSigmaExp += fvc::div(sigmaD);
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}
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}
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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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