上海交通大学学报

上海交通大学学报 >

2001 , Vol. 35 >Issue 04: 493 - 495

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2001.04.003

裂纹跟踪的网格生成技术

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  • 上海交通大学建筑工程与力学学院，上海 　200030
黄向平　1976年生, 1998年于合肥工业大学获学士学位，现为上海交通大学建筑工程与力学学院硕士研究生.研究领域: 自适应有限元在岩土工程中的应用.

收稿日期: 2000-05-23

  网络出版日期: 2021-04-25

基金资助

国家自然科学基金资助项目(59879012)

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Mesh Generation Technique of Tracing Crack Propagation

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  • School of Civil Eng. and Mechanics, Shanghai Jiaotong Univ. , Shanghai 200030, China

Received date: 2000-05-23

  Online published: 2021-04-25

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摘要

讨论了自适应有限元模拟裂纹扩展的网格生成技术，通过修改裂纹周围单元的形状及单元间的邻接关系，实现网格动态划分对裂纹扩展进行跟踪．本方法具有修改范围小，可实现性强，无须修改单元类型等优点．算例表明，所提的算法是有效的．

关键词： 自适应网格加密; 裂纹扩展; 邻接关系

本文引用格式

黄向平, 王建华 . 裂纹跟踪的网格生成技术[J]. 上海交通大学学报, 2001 , 35(04) : 493 -495 . DOI: 10.16183/j.cnki.jsjtu.2001.04.003

Abstract

A new technique of mesh generation used in tracing the crack propagation with adaptive FEM was provided. The method will simulate the crack propagation dynamically by modifying the shape and the neighboring connection. This method has the advantages such as narrower modifying area, more realizable, needless of changing the element type, and so on. A numerical example shows the provided method is effective.

Key words： adaptive mesh refinement; crack propagation; neighboring connection

参考文献

[1] Bittencourt T N, Wawrzynek P A. Quasi-automatic simulation of crack propagation for 2D LEFM problem[J]. Engineering Mechanics, 1996, 55(2): 321~334.
[2] Shephard M S, Yehla N A B. Computational strategies for nonlinear and fracture mechaniscs problem[J]. Computer & Structure, 1985, 20: 211~223.
[3] Bolander J E, Saito J S. Fracture analyses using spring networks with random geometry[J]. Engineering Fracture Mechanics, 1998, 61: 569~591.
[4] Klein P, Gao H. Crack nucleation and growth as strain localization in a virtual-bond continium[J]. Engineering Fracture Mechanics, 1998, 61: 21~48.
[5] 何庆芝, 郦正能.工程断裂力学[M]. 北京: 北京航空航天出版社, 1993.96~101.
[6] 王建华, 王卫中.平面任意区域自适应网格生成技术[J]. 计算机辅助设计与图形学学报, 1997, 9: 16~21.
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