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arXiv 1401.0185math.APcs.NAmath.NA
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分层矩阵技术在复合材料均质化中的应用

Application of Hierarchical Matrix Techniques To The Homogenization of Composite Materials

Ecole Polytechnique Fédérale de Lausanne(洛桑联邦理工学院);École Centrale de Nantes(南特中央理工学院)

Paul Cazeaux, Olivier Zahm

AI总结:

本文研究基于积分方程的数值均质化方法,通过等效包含体方法和边界积分方程解决正确子问题,并利用H矩阵格式处理完全填充矩阵。

摘要:

本文研究基于积分方程的数值均质化方法。我们的工作受混凝土等材料的启发,这些材料被建模为随机分布的包含体嵌入基质中。我们研究了正确子问题的两种积分改写方法,即基于Lippmann-Schwinger方程的等效包含体方法和基于边界积分方程的方法。通过积分算子的离散化得到的完全填充矩阵,成功利用H矩阵格式进行处理。

英文摘要:

In this paper, we study numerical homogenization methods based on integral equations. Our work is motivated by materials such as concrete, modeled as composites structured as randomly distributed inclusions imbedded in a matrix. We investigate two integral reformulations of the corrector problem to be solved, namely the equivalent inclusion method based on the Lippmann-Schwinger equation, and a method based on boundary integral equations. The fully populated matrices obtained by the discretization of the integral operators are successfully dealt with using the H-matrix format.

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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