期刊
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
卷 190, 期 46-47, 页码 6183-6200出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0045-7825(01)00215-8
关键词
extended finite-element method; level set method; voids; material interface; elastic inclusion
A methodology to model arbitrary holes and material interfaces (inclusions) without meshing the internal boundaries is proposed. The numerical method couples the level set method (S. Osher, J.A. Sethian, J. Comput. Phys. 79 (1) (1988) 12) to the extended finite-element method (X-FEM) (N. Moes, J. Dolbow, T. Belytschko, Int. J. Numer. Methods Engrg. 46 (1) (1999) 131). In the X-FEM, the finite-element approximation is enriched by additional functions through the notion of partition of unity. The level set method is used for representing the location of holes and material interfaces, and in addition, the level set function is used to develop the local enrichment for material interfaces. Numerical examples in two-dimensional linear elastostatics are presented to demonstrate the accuracy and potential of the new technique. (C) 2001 Elsevier Science BY. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据