64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
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{
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label patchID = mesh.boundaryMesh().findPatchID("loadedEnd");
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if(patchID == -1)
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{
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FatalErrorIn(args.executable())
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<< "Can't find patch with name loadedEnd" << abort(FatalError);
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}
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if
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(
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DU.boundaryField()[patchID].type()
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!= tractionDisplacementIncrementFvPatchVectorField::typeName
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)
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{
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FatalErrorIn(args.executable())
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<< "Bounary condition on " << DU.name()
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<< " is "
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<< DU.boundaryField()[patchID].type()
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<< "for patch: " << mesh.boundaryMesh()[patchID].name()
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<< ", instead "
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<< tractionDisplacementIncrementFvPatchVectorField::typeName
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<< abort(FatalError);
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}
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tractionDisplacementIncrementFvPatchVectorField& tractionPatch =
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refCast<tractionDisplacementIncrementFvPatchVectorField>
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(
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DU.boundaryField()[patchID]
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);
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vectorField n = mesh.boundary()[patchID].nf();
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vector traction = vector::zero;
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vector DTraction = vector::zero;
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if(runTime.timeIndex()==1)
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{
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traction = vector::zero;
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DTraction = maxTraction;
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}
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else if(runTime.timeIndex()>=2)
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{
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traction = maxTraction;
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DTraction = vector::zero;
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}
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vectorField relaxedTraction =
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(
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n
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& (
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sigma.boundaryField()[patchID]
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+ DSigmaCorr.boundaryField()[patchID]
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)
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);
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tractionPatch.DTraction() = DTraction + (traction - relaxedTraction);
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tractionPatch.DPressure() = 0.0;
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}
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