Kacem Saï

TL;DR: In this article, a general framework for the development of plastic or viscoplastic constitutive equations is described, which is restricted to the case of quadratic criteria, and specially to the study of various interactions which can be introduced between the mechanisms.

TL;DR: Hassan et al. as mentioned in this paper evaluated two modified cyclic plasticity models in predicting a broad set of cyclic and ratcheting response of stainless steel 304, and the experimental responses used in evaluating the modified models included both proportional and nonproportional (biaxial) loading responses from Hassan and Kyriakides.

TL;DR: In this paper, two multi-phase models called 2M1C and 2M2C which take the degree of crystallinity into account were investigated with the help of tensile and creep test database of polyamide 6 (PA6) material.

TL;DR: The paper gives a review of the main features introduced in the multi-mechanism models, of the present possibilities and of further developments, and proposes of future development.

TL;DR: In this paper, the 2M1C (2 Mechanisms and 1 Criterion) model and 2M2C model were modified to incorporate a corrective term in the computation of the local stresses; Burlet-Cailletaud's fading memory term in kinematic hardening evolution rule.