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arXiv 1002.4385math.NAcs.NAmath.AP
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涉及微观结构的传输问题的有限元-边界元耦合

FE-BE coupling for a transmission problem involving microstructure

Heiko Gimperlein, Matthias Maischak, Elmar Schrohe, Ernst P. Stephan

AI总结:

针对双阱势非凸接触问题,提出有限元/边界元耦合方法,通过松弛泛函将退化最小化问题转化为边界/域变分不等式,并离散化求解鞍点问题,讨论了Galerkin近似对宏观量的收敛性和后验误差估计。

摘要:

我们分析了一种有限元/边界元程序,用于求解双阱势的非凸接触问题。在松弛相关泛函后,退化最小化问题被简化为一个边界/域变分不等式,其离散化的鞍点形式随后可以数值求解。讨论了Galerkin近似对某些宏观量的收敛性以及相应的近似误差后验估计。

英文摘要:

We analyze a finite element/boundary element procedure to solve a non-convex contact problem for the double-well potential. After relaxing the associated functional, the degenerate minimization problem is reduced to a boundary/domain variational inequality, a discretized saddle point formulation of which may then be solved numerically. The convergence of the Galerkin approximations to certain macroscopic quantities and a corresponding a posteriori estimate for the approximation error are discussed.

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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