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A finite element method for crack growth without remeshing

pikaiyu 添加于 2011-3-17 13:40 | 2515 次阅读 | 0 个评论

作者
Moes N, Dolbow J, Belytschko T
摘要
An improvement of a new technique for modelling cracks in the finite element framework is presented. A standard displacement-based approximation is enriched near a crack by incorporating both discontinuous fields and the near tip asymptotic fields through a partition of unity method. A methodology that constructs the enriched approximation from the interaction of the crack geometry with the mesh is developed. This technique allows the entire crack to be represented independently of the mesh, and so remeshing is not necessary to model crack growth. Numerical experiments are provided to demonstrate the utility and robustness of the proposed technique. Copyright (C) 1999 John Wiley & Sons, Ltd.
详细资料
- 文献种类:期刊
- 期刊名称: INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
- 期卷页: 1999年第46卷第1期 131-150页
- 出版社: JOHN WILEY & SONS LTD, BAFFINS LANE CHICHESTER, W SUSSEX PO19 1UD, ENGLAND
- 地址: 1. Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA
- ISBN: 0029-5981
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A finite element method for crack growth without remeshing
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