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A new approach for modelling slip lines in geological materials with cohesive models

✍ Scribed by T. Rabczuk; P.M.A. Areias

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
461 KB
Volume
30
Category
Article
ISSN
0363-9061

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✦ Synopsis

A methodology to model slip lines as strong displacement discontinuities within a continuum mechanics context is presented. The loss of hyperbolicity of the IBVP is used as the criterion for switching from a classical continuum description of the constitutive behaviour to a traction-separation model acting at the discontinuity surface. A version of the element-free Galerkin (EFG) method is employed where the slip line is represented as a set of slipped particles. The representation of the slip line as set of cohesive segments promises to remove difficulties in the propagation of the slip line. Two-dimensional examples are studied using the Drucker-Prager material model.

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