119 lines
3.5 KiB
C
119 lines
3.5 KiB
C
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | foam-extend: Open Source CFD
|
|
\\ / O peration | Version: 3.2
|
|
\\ / A nd | Web: http://www.foam-extend.org
|
|
\\/ M anipulation | For copyright notice see file Copyright
|
|
-------------------------------------------------------------------------------
|
|
License
|
|
This file is part of foam-extend.
|
|
|
|
foam-extend is free software: you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by the
|
|
Free Software Foundation, either version 3 of the License, or (at your
|
|
option) any later version.
|
|
|
|
foam-extend is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with foam-extend. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
Application
|
|
stressedFoam
|
|
|
|
Description
|
|
Transient/steady-state solver of linear-elastic, small-strain deformation
|
|
of solid bodies in contact.
|
|
|
|
Simple linear elasticity structural analysis code.
|
|
Solves for the displacement vector field U,
|
|
also generating the stress tensor field sigma.
|
|
|
|
Code can be compiled for simple stress analysis,
|
|
and dynamic stress analysis.
|
|
|
|
Additionally, special handling of very non-orthogonal meshes may be added.
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#include "fvCFD.H"
|
|
#include "fixedGradientFvPatchFields.H"
|
|
#include "directionMixedFvPatchFields.H"
|
|
#include "contactPatchPair.H"
|
|
|
|
#include "pointFields.H"
|
|
#include "transformField.H"
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
|
|
# include "setRootCase.H"
|
|
|
|
# include "createTime.H"
|
|
# include "createMesh.H"
|
|
# include "createFields.H"
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
Info<< "\nCalculating displacement field\n" << endl;
|
|
|
|
volTensorField gradU = fvc::grad(U);
|
|
|
|
for (runTime++; !runTime.end(); runTime++)
|
|
{
|
|
Info<< "Iteration: " << runTime.timeName() << nl << endl;
|
|
|
|
# include "../stressedFoam/readStressedFoamControls.H"
|
|
|
|
int iCorr=0;
|
|
scalar initialResidual=0;
|
|
|
|
# include "contactBoundaries.H"
|
|
|
|
do
|
|
{
|
|
# include "tractionBoundaries.H"
|
|
|
|
fvVectorMatrix UEqn
|
|
(
|
|
# ifdef Dynamic
|
|
fvm::d2dt2(U)
|
|
==
|
|
# endif
|
|
|
|
fvm::laplacian(2*mu + lambda, U, "laplacian(DU,U)")
|
|
|
|
+ fvc::div
|
|
(
|
|
mu*gradU.T() + lambda*(I*tr(gradU)) - (mu + lambda)*gradU,
|
|
"div(sigma)"
|
|
)
|
|
);
|
|
|
|
UEqn.setComponentReference(6, 0, vector::Z, 0);
|
|
|
|
initialResidual = UEqn.solve().initialResidual();
|
|
|
|
gradU = fvc::grad(U);
|
|
|
|
} while (initialResidual > convergenceTolerance && ++iCorr < nCorr);
|
|
|
|
# include "calculateStress.H"
|
|
|
|
Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
|
|
<< " ClockTime = " << runTime.elapsedClockTime() << " s"
|
|
<< nl << endl;
|
|
}
|
|
|
|
Info<< "End\n" << endl;
|
|
|
|
return(0);
|
|
}
|
|
|
|
|
|
// ************************************************************************* //
|