A generalized cohesive element technique for arbitrary crack motion
Document Type
Article
Publication Date
6-2009
Department
Department of Mechanical Engineering-Engineering Mechanics
Abstract
A computational method for arbitrary crack motion through a finite element mesh, termed as the generalized cohesive element technique, is presented. In this method, an element with an internal discontinuity is replaced by two superimposed elements with a combination of original and imaginary nodes. Conventional cohesive zone modeling, limited to crack propagation along the edges of the elements, is extended to incorporate the intra-element mixed-mode crack propagation. Proposed numerical technique has been shown to be quite accurate, robust and mesh insensitive provided the cohesive zone ahead of the crack tip is resolved adequately. A series of numerical examples is presented to demonstrate the validity and applicability of the proposed method.
Publication Title
Finite Elements in Analysis and Design
Recommended Citation
Maiti, S.,
Ghosh, D.,
&
Subhash, G.
(2009).
A generalized cohesive element technique for arbitrary crack motion.
Finite Elements in Analysis and Design,
45(8-9), 501-510.
http://doi.org/10.1016/j.finel.2009.02.003
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/6401
