Finite element analysis of finite strain micromorphic Drucker-Prager plasticity
作者： Volkan Isbuga , Richard A. Regueiro
DOI: 10.1016/J.COMPSTRUC.2017.07.025
关键词:
摘要: Abstract Earlier, Isbuga and Regueiro (2011) presented three dimensional finite element analysis of strain micromorphic isotropic elasticity based on the approach Eringen Suhubi (1964). We present extension this work to plasticity, following formulation (2009, 2010) (2012). assume existence an intermediate configuration apply separate multiplicative decomposition deformation gradient tensor micro-deformation tensor. In paper, we investigate effect elastic length scale together with boundary layer micro-displacement field for uniaxial plane conditions, involving elastoplasticity a Drucker-Prager yield function. emphasize importance additional degrees freedom introduced by continuum formulation.
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