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arXiv 1901.09522math.AP
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接触力学中与历史相关的半变分不等式的Rothe方法和数值分析

Rothe method and numerical analysis for history-dependent hemivariational inequalities with applications to contact mechanics

Stanislaw Migorski, Shengda Zeng

摘要:

本文研究了一个具有历史依赖算子的抽象发展半变分不等式。首先,利用Rothe方法证明了其唯一可解性和解的正则性。接下来,我们引入一个数值方案来解决不等式,并获得误差估计。我们将结果应用于准静态摩擦接触问题,其中材料用粘弹性本构关系建模,接触以多值法向顺应性的形式给出,摩擦用局部Lipschitz势的次梯度描述。最后,对于接触问题,给出了最优误差估计。

英文摘要:

In this paper an abstract evolutionary hemivariational inequality with a history-dependent operator is studied. First, a result on its unique solvability and solution regularity is proved by applying the Rothe method. Next, we introduce a numerical scheme to solve the inequality and derive error estimates. We apply the results to a quasistatic frictional contact problem in which the material is modeled with a viscoelastic constitutive law, the contact is given in the form of multivalued normal compliance, and friction is described with a subgradient of a locally Lipschitz potential. Finally, for the contact problem we provide the optimal error estimate.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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