5 lines
153 B
C
5 lines
153 B
C
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DEpsilon = symm(gradDU) + 0.5*symm(gradDU & gradDU.T());
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DSigma = 2*rheology.newMu()*(DEpsilon - DEpsilonP)
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+ rheology.newLambda()*(I*tr(DEpsilon));
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