A review of some plasticity and viscoplasticity constitutive theories

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Experiments and parametric studies on 3D metallic auxetic metamaterials with tuneable mechanical properties (2015, background): “Furthermore, the plastic hardening has been used to enhance the strength of metallic materials [63], and this feature could be exploited to adjust the stiffness and strength of the metallic auxetic metamaterials.”
Probabilistic framework for multiaxial LCF assessment under material variability (2017, background): “More information on the determination of Chaboche model parameters can be referred to [59].”
Homogenization of elasto-(visco) plastic composites based on an incremental variational principle (2012, background): “…Y P rY ; 0 Y < rY ; 8 < : ð74Þ or, equivalently: /(ð _p;pÞ ¼ _pY0 þ _pDðpÞ Mþ1 _p _p0 * +Mþ1 _p P 0; þ1 _p < 0: 8 < : ð75Þ The drag stress D(p) can be given a general expression of the form D(p) = K + fR(p) which corresponds to a drag stress proportional to the hardening stress (Chaboche, 2008).”
A generalized stochastic perturbation technique for plasticity problems (2010, neutral): “Finally, let us note that this model may be applied to the other probability distributions (also multidimensional), be extended towards the stochastic processes accounting, at least for the analysis of the aging phenomena [10] and towards a randomization of various plasticity and viscoplasticity mod”