Analysis of Dynamic Fracture with Cohesive Crack Segment Method
H.X. Wang and S.X. Wang

Source CMES: Computer Modeling in Engineering & Sciences, Vol. 35, No. 3, pp. 253-274, 2008
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Keywords Computational Mechanics, Applied Mathematics, Fracture Mechanics, Applied Mechanics
Abstract In the meshfree cohesive crack method, the discrete crack is modeled by a set of cohesive crack segments which can be arbitrarily oriented. Propagation of the crack is achieved by activation of crack surfaces at individual nodes, so no representation of the crack surface is needed. The crack is modeled by a local enrichment of the test and trial functions with sign function, so that discontinuities are along the direction of the crack. A set of cracking rules is developed to avoid spurious cracking.
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