Journal
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
Volume 197, Issue 6-8, Pages 641-658Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cma.2007.08.027
Keywords
meshfree methods; shear bands; loss of hyperbolicity; traction-separation laws
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A simple methodology to model shear bands as strong displacement discontinuities in an adaptive meshfree method is presented. The shear band is represented by a displacement jump at discrete particle positions. The displacement jump in normal direction is suppressed with penalty method. Loss of material stability is used as transition criterion from continuum to discontinumn. The method is two- and three-dimensional. Examples of complicated shear banding including transition from brittle-to-ductile failure are studied and compared to experimental data and other examples from the literature. (c) 2007 Elsevier B.V. All rights reserved.
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