Studies of FE/PML for exterior problems of time-harmonic elastic waves

被引：56

作者：

Harari, I ^{[1
]}

Albocher, U ^{[1
]}

机构：

[1] Tel Aviv Univ, Dept Solid Mech Mat & Syst, IL-69978 Ramat Aviv, Israel

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 2006年 / 195卷 / 29-32期

关键词：

elastic waves; unbounded domains; perfectly matched layer (PML); finite elements;

D O I：

10.1016/j.cma.2005.01.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The equation of an absorbing layer for time-harmonic elastic waves, based on the perfectly matched layer (PML) concept, is formulated in a manner that is easily implemented in finite element software. In the proposed approach, the layer is viewed as an anisotropic material with continuously varying complex material properties. The effect of the PML parameters on its discrete representation is investigated through dispersion analysis. Guidelines for proper selection of the PML parameters are presented. The formulation, with the parameters selected according to the guidelines proposed, performs well in computation. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：3854 / 3879

页数：26

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