tractionDisplacementFvPatchVectorFieldTemplates.C

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#include "tractionDisplacementFvPatchVectorField.H"
#include "solidDisplacementThermo.H"
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class Type>
void Foam::tractionDisplacementFvPatchVectorField::updateCoeffs
(
    const Type& pressure
)
{
    const label patchi = patch().index();
 
    const solidDisplacementThermo& thermo =
        db().lookupObject<solidDisplacementThermo>
        (
            physicalProperties::typeName
        );
 
    const scalarField& E = thermo.E(patchi);
    const scalarField& nu = thermo.nu(patchi);
 
    const scalarField mu(E/(2.0*(1.0 + nu)));
    const scalarField lambda
    (
        thermo.planeStress()
      ? nu*E/((1 + nu)*(1 - nu))
      : nu*E/((1 + nu)*(1 - 2*nu))
    );
    const scalarField threeK
    (
        thermo.planeStress()
      ? E/(1 - nu)
      : E/(1 - 2*nu)
    );
 
    const scalarField twoMuLambda(2*mu + lambda);
 
    const vectorField n(patch().nf());
 
    const fvPatchField<symmTensor>& sigmaD =
        patch().lookupPatchField<volSymmTensorField, symmTensor>("sigmaD");
 
    gradient() =
    (
        (traction_ - pressure*n)
      + twoMuLambda*fvPatchField<vector>::snGrad() - (n & sigmaD)
    )/twoMuLambda;
 
    if (thermo.thermalStress())
    {
        const scalarField& alphav = thermo.alphav(patchi);
 
        gradient() +=
            n*threeK*alphav*thermo.T().boundaryField()[patchi]/twoMuLambda;
    }
 
    fixedGradientFvPatchVectorField::updateCoeffs();
}
 
 
// ************************************************************************* //