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Discontinuous modelling of crack propagation in a gradient-enhanced continuum


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Conference Object

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Authors

Simone, A 
Wells, GN 
Sluys, LJ 

Abstract

A numerical model for the description of the combined continuous/discontinuous failure in a regularised strain-softening continuum is proposed. The continuum is regularised through the introduction of gradient terms into the constitutive equations. At the transition to discrete failure, the problem fields are enhanced through a discontinuous interpolation based on the partition of unity concept. The discretisation procedure is described in detail and numerical examples illustrate the performance of the combined continuous/discontinuous approach.

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Keywords

gradient damage, displacement discontinuities, fracture, enriched finite elements, partition of unity

Journal Title

Conference Name

Fifth World Congress on Computational Mechanics (WCCMV)

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