On the applicability of multi-surface, two-surface and non-linear kinematic hardening models in multiaxial fatigue

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Abstract

In this work, a comparison between NLK and Mróz-Garud’s multi-surface formulations is presented. A unified common notation is introduced to describe the involved equations, showing that the Mróz-Garud model can be regarded as a particular case of the NLK formulation. It is also shown that the classic two-surface model, which is an unconventional simplified plasticity model based on the translation of only two surfaces, can also be represented using this formulation. Such common notation allows a direct quantitative comparison among multi-surface, two-surface, and NLK hardening models.

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Meggiolaro, M. A., Castro, J. T. P., & Wu, H. (2015). On the applicability of multi-surface, two-surface and non-linear kinematic hardening models in multiaxial fatigue. Frattura Ed Integrita Strutturale, 9(33), 357–367. https://doi.org/10.3221/IGF-ESIS.33.39

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