41 lines
1.4 KiB
C
41 lines
1.4 KiB
C
{
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surfaceVectorField n = mesh.Sf()/mesh.magSf();
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// traction = (n&fvc::interpolate(sigma));
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// surfaceTensorField sGradU =
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// ((I - n*n)&fvc::interpolate(gradU));
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// traction =
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// (2*mu + lambda)*snGradU
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// - (mu + lambda)*(snGradU&(I - n*n))
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// + mu*(sGradU&n)
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// + lambda*tr(sGradU&(I - n*n))*n;
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// traction =
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// (2*mu + lambda)*fvc::snGrad(U)
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// - (mu + lambda)*(n&sGradU)
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// + mu*(sGradU&n)
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// + lambda*tr(sGradU)*n;
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// philipc
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// I am having trouble with back-calculation of interface tractions from solid interface
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// procedure (in multiMaterial.C), the tractions have quite large differences from each
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// side. Interpolating sigma is OK for now
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// traction = rheology.law().interfaceTraction(n, U, gradU, rheology.mu(), rheology.lambda());
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# include "calculateDEpsilonDSigma.H"
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traction = (n&fvc::interpolate(sigma+DSigma));
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// forAll(traction.boundaryField(), patchi)
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// {
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// if (mesh.boundary()[patchi].type() == "cohesive")
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// {
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// forAll(traction.boundaryField()[patchi], facei)
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// {
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// Pout << "face " << facei << " with traction magnitude "
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// << mag(traction.boundaryField()[patchi][facei])/1e6 << " MPa and traction "
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// << traction.boundaryField()[patchi][facei]/1e6 << " MPa" << endl;
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// }
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// }
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// }
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}
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