A Unified Constitutive Model for Cyclic Viscoplasticity and Its Applications to Various Stainless Steels

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Abstract
This paper deals with the monotonic and cyclic behavior of austenitic stainless steels and the way to model it. Developments made on constitutive equations led to elaborate sophisticated models justified by the complexity of the real behavior of these materials, especially at high temperature. In the first part, a survey of the various components introduced in the ONERA model is made in terms of a hierarchical presentation. The second part is devoted to several applications on different types of stainless steels in order to illustrate the capabilities of the model for various loading situations.

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