48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
//--------------------------------------------------//
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//- rotate fields
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//--------------------------------------------------//
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{
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Info << "Rotating fields" << endl;
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volTensorField F = I + gradDU;
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U += DU;
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epsilon += DEpsilon;
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sigma += DSigma;
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volTensorField Finv = inv(F);
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volScalarField J = det(F);
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if(min(J.internalField()) < 0)
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{
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FatalErrorIn(args.executable())
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<< "Negative Jacobian - a cell volume has become negative!"
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<< exit(FatalError);
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}
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rho = rho/J;
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n = mesh.Sf()/mesh.magSf();
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//- rotate strain
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//epsilon = symm(Finv & epsilon & Finv.T());
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epsilon = transform(Finv, epsilon);
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//- rotate stress
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//sigma = 1/J * symm(F.T() & sigma & F);
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sigma = (1/J) * transform(F.T(), sigma);
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//- rotate elastic constitutive tensor
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C = transform(F.T(), C);
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// - update implicit stiffness tensor
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forAll(K, celli)
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{
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K[celli].xx() = C[celli].xxxx();
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K[celli].yy() = C[celli].yyyy();
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K[celli].zz() = C[celli].zzzz();
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}
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K.correctBoundaryConditions();
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}
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