Discontinuous modelling of crack propagation in a gradient-enhanced continuum
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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.
Description
Keywords
gradient damage, displacement discontinuities, fracture, enriched finite elements, partition of unity
Journal Title
Conference Name
Fifth World Congress on Computational Mechanics (WCCMV)