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  1. ying

    how to get the external force from presribed BC.s in N-R method?

    I am doing the non-linear viscoelastic problem by Newton-Raphson method. And I am now trying to test the code by a bar, one end is constrained while the other is under prescribed displacement u=at, where a is a constant. The questions are: 1. how to get reaction forces acted at the two ends...

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