APPLICATION OF ELASTOPLASTICITY COUPLED WITH DAMAGE IN STRAIN LOCALIZATION ANALYSIS

Nonlocal constitutive models are widely used for effectively simulating strain localization. The major models may be classified into the following two kinds: the weighted-area-averaged nonlocal model and thegradient-enhanced-nonlocal model. Comparison between the two models ismade in this paper. It is found that the Aifantis model is a reasonable choice fornumerical simulation of a localized non-homogeneous material, but it issubject to some improvements.