Crack propagation modelling using an advanced remeshing technique

被引：197

作者：

Bouchard, PO

Bay, F

Chastel, Y

Tovena, I

机构：

[1] Ecole Mines, Ctr Mise Forme Mat, UMR 7635, F-06904 Sophia Antipolis, France

[2] CENS, LNGS, SESD, Commissariat Energie Atom,DESD, F-91911 Gif Sur Yvette, France

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 2000年 / 189卷 / 03期

关键词：

finite element; remeshing; crack propagation; fracture; mechanics;

D O I：

10.1016/S0045-7825(99)00324-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The modelling of a crack propagation through a finite element mesh is of prime importance in fracture mechanics. We propose here a solution based on an advanced remeshing technique. A fully automatic remesher enables us to deal with multiple boundaries and multiple materials. The propagation of the crack is achieved with both remeshing and nodal relaxation. A maximal normal stress criterion is used to compute the crack direction. Several tools are developed and presented to obtain accurate results at the crack tip: evolving mesh refinement, crack tip finite elements, ring of elements surrounding the crack. Finally, several applications are presented to show the robustness of this technique. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：723 / 742

页数：20

共 26 条

[1]

Barsoum R. S., 1976, International Journal for Numerical Methods in Engineering, V10, P25, DOI 10.1002/nme.1620100103

[2] ELEMENT-FREE GALERKIN METHODS [J].