foam-extend4.1-coherent-io/applications/solvers/stressAnalysis/stressFemFoam/stressFemFoam.C

/*---------------------------------------------------------------------------*\
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License
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Application
    stressFemFoam

Description
    Steady-state segregated finite-element solver of linear-elastic,
    small-strain deformation of a solid body.

    Simple linear elasticity structural analysis code.
    Solves for the displacement vector field U, also generating the
    stress tensor field sigma.

\*---------------------------------------------------------------------------*/

#include "fvCFD.H"

#include "tetPolyMesh.H"
#include "tetPointFields.H"
#include "tetFem.H"
#include "tetFec.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

int main(int argc, char *argv[])
{
#   include "setRootCase.H"
#   include "createTime.H"
#   include "createMesh.H"

#   include "createFemMesh.H"
#   include "createFemFields.H"

#   include "readMechanicalProperties.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

    Info << "\nCalculating displacement field\n" << endl;

    for (runTime++; !runTime.end(); runTime++)
    {
        Info<< "Iteration: " << runTime.timeName() << nl << endl;

        tetFemVectorMatrix UEqn
        (
            tetFem::laplacian(mu, U)
          + tetFem::laplacianTranspose(mu, U)
          + tetFem::laplacianTrace(lambda, U)
        );

        solve(UEqn);

#       include "calculateStress.H"

        Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
            << "  ClockTime = " << runTime.elapsedClockTime() << " s"
            << nl << endl;
    }

    Info << "End\n" << endl;

    return(0);
}

// ************************************************************************* //