46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
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//- write force displacement to file
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if(historyPatchID != -1)
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{
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Info << "Found patch "<<historyPatchName<<", writing y force and displacement to file"
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<< endl;
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//- calculate force in specified direction on topClamp patch
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//vector direction(0, 1, 0);
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//- for small strain or moving mesh
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vector force = gSum(
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//direction &
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(mesh.boundary()[historyPatchID].Sf() & sigma.boundaryField()[historyPatchID])
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);
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//- for large strain total lagrangian
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// tensorField F = I + gradU.boundaryField()[historyPatchID];
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// vectorField totalForce = mesh.Sf().boundaryField()[historyPatchID] & (sigma.boundaryField()[historyPatchID] & F);
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//vector force = sum( totalForce );
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//scalar force = force[vector::Y];;
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//- patchIntegrate utility integrates it this way but this is worng because the sigma tensor should
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//- be dotted with the surface normal to give the actual traction/force
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//- you cannot just take the component of the sigma tensor
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//scalar forcePatchIntegrateMethod = gSum(
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// mesh.magSf().boundaryField()[historyPatchID]
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// *sigma.boundaryField()[historyPatchID].component(symmTensor::XY)
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// );
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scalar disp = max(U.boundaryField()[historyPatchID].component(vector::Y));
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//- write to file
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if(Pstream::master())
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{
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OFstream& forceDispFile = *filePtr;
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forceDispFile << disp << "\t"
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<< force.x() << " "
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<< force.y() << " "
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<< force.z() << endl;
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}
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}
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//clipG.write();
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