Modelling of cohesive crack growth in concrete structures with the extended finite element method

被引：225

作者：

Unger, Joerg F. ^{[1
]}

Eckardt, Stefan ^{[1
]}

Koenke, Carsten ^{[1
]}

机构：

[1] Bauhaus Univ, Inst Struct Mech, D-99423 Weimar, Germany

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 2007年 / 196卷 / 41-44期

关键词：

extended finite element method; cohesive crack; concrete; crack extension criterion;

D O I：

10.1016/j.cma.2007.03.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper.. the extended finite element method (XFEM) is used for a discrete crack simulation of concrete using an adaptive crack growth algorithm. Different criteria for predicting the direction of the extension of a cohesive crack are investigated in the context of the XFEM. The robustness of these criteria is analyzed with reference to three examples and the results are compared to experiments. Furthermore. the efficient application of the quadtree data structure for an iterative mesh refinement in combination with the XFEM is shown considerably to reduce the computational effort. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：4087 / 4100

页数：14

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