Strongly nonlocal gradient-enhanced finite strain elastoplasticity

M.G.D. Geers, R.L.J.M. Ubachs, R.A.B. Engelen

Research output: Contribution to journalArticleAcademicpeer-review

61 Citations (Scopus)
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This paper presents a gradient plasticity formulation developed in a strongly non-local format and applicable to ductile failure for finite strain plasticity. The obtained formulation is an extension of a framework proposed by Simo (Computer Methods in Applied Mechanics and Engineering 1988; 66: 199) into the softening and localization regime. The presented model inherits the well-established regularization properties of its strongly non-local enrichment and leads to an implicit computational scheme with a consistent tangent operator. Numerical examples are given which illustrate the strongly non-local character of the formulation, the influence of the type of intrinsic length scale considered, as well as several topics on plastic failure initiation and evolution into the geometrically non-linear regime.
Original languageEnglish
Pages (from-to)2039-2068
JournalInternational Journal for Numerical Methods in Engineering
Issue number14
Publication statusPublished - 2003


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