基于广义扩展有限元法的裂纹追踪分析  

Analysis of Crack Propagation Based On Generalized Extended Finite Element Method

作　　者：徐超[1] 

机构地区：[1]福建省建筑科学研究院福建省绿色建筑技术重点实验室,福建福州350025

出　　处：《福建建设科技》2015年第1期28-31,共4页Fujian Construction Science & Technology

摘　　要：广义扩展有限元法(GXFEM)是结合广义有限元法(GFEM)与扩展有限元法(XFEM)形成的一种新型数值分析方法。由于广义扩展有限元法同时继承了广义有限元法和扩展有限元法的优点,与其他数值方法相比具有独特的优势。本文阐述了广义扩展有限元法的基本原理和数值实现方法,编制了相关计算程序,实现其裂纹扩展的追踪分析。Generalized extended finite element method （GXFEM） is a kind of new numerical method which is formed by combining gener- alized finite element method （GFEM） and extended finite element method （XFEM）. GXFEM has inherited and developed the characteris- tic of GFEM and XFEM. Therefore, compared with other methods, GXFEM has particular advantage. In this paper, the basic principle and numerical implementation of GXFEM is introduced, and the relevant program is made to simulate crack propagation.

关 键 词：广义扩展有限元法 裂纹扩展 数值模拟 

分 类 号：O241.82[理学—计算数学] O346.1[理学—数学]