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The Lamé problem in a 2D domain with a crack under anon-penetration condition is considered as a variational inequality.A primaldual active set method is proposed as an efficientnumerical solution technique and compared to a previously employediterative method for a penalized formulation. Sufficient conditionsfor monotonic convergence of a discretized version of the proposedalgorithm are given and numerical experiments are presented. 相似文献
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