31 lines
841 B
C
31 lines
841 B
C
//--------------------------------------------------//
|
|
//- rotate fields
|
|
//--------------------------------------------------//
|
|
{
|
|
Info << "Rotating fields" << endl;
|
|
|
|
volTensorField F = I + gradDU;
|
|
|
|
volTensorField Finv = inv(F);
|
|
|
|
volScalarField J = det(F);
|
|
if(min(J.internalField()) < 0)
|
|
{
|
|
FatalErrorIn(args.executable())
|
|
<< "Negative Jacobian -> cell negative volumes!!!"
|
|
<< exit(FatalError);
|
|
}
|
|
|
|
rho = rho/J;
|
|
n = mesh.Sf()/mesh.magSf();
|
|
|
|
// rotate strain and stress fields
|
|
//epsilon = symm(Finv & epsilon & Finv.T());
|
|
epsilon = transform(Finv, epsilon);
|
|
|
|
//sigma = 1/J * symm(F.T() & sigma & F);
|
|
sigma = (1/J)*transform(F.T(), sigma);
|
|
|
|
// Note: for strict large strain approach, the constitutive stiffness
|
|
// would be rotated here - see elasticOrthoNonLinULSolidFoam.
|
|
}
|