A meshfree method based on the local partition of unity for cohesive cracks

Type of content
Journal Article
Thesis discipline
Degree name
Publisher
University of Canterbury. Mechanical Engineering.
Journal Title
Journal ISSN
Volume Title
Language
Date
2007
Authors
Rabczuk, T.
Zi, G.
Abstract

We will present a meshfree method based on the local partition of unity for cohesive cracks. The cracks are described by a jump in the displacement field for particles whose domain of influence is cut by the crack. Particles with partially cut domain of influence are enriched with branch functions. Crack propagation is governed by the material stability condition. Due to the smoothness and higher order continuity, the method is very accurate which is demonstrated for several quasi static and dynamic crack propagation examples.

Description
Citation
Rabczuk, T., Zi, G. (2007) A meshfree method based on the local partition of unity for cohesive cracks. Computational Mechanics, 39(6), pp. 743-760.
Keywords
extended element-free Galerkin method (XEFG), cracks, cohesive models, dynamic fracture
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