Journal
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
Volume 51, Issue 8, Pages 943-960Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/nme.201
Keywords
extended finite elements method; level set method; crack growth
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An algorithm which couples the level set method (LSM)with the extended finite element method (X-FEM) to model crack growth is described. The level set method is used to represent the crack location, including the location of crack tips. The extended finite element method is used to compute the stress and displacement fields necessary for determining the rate of crack growth. This combined method requires no remeshing as the crack progresses, making the algorithm very efficient. The combination of these methods has a tremendous potential for a wide range of applications. Numerical examples are presented to demonstrate the accuracy of the combined methods. Copyright (C) 2001 John Wiley & Sons, Ltd.
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