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304 stainless steel; Chaboche; Constituitive model; In617; Thermoviscoplasticity; Ti6242; Viscoplasticity
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Compendium Of Thermoviscoplasticity Modeling Parameters For Materials Under Non-Isothermal Fatigue, Nathan O'Nora
Compendium Of Thermoviscoplasticity Modeling Parameters For Materials Under Non-Isothermal Fatigue, Nathan O'Nora
HIM 1990-2015
Viscoplasticity models allow for the prediction of the inelastic behavior of materials, taking into account the rate-dependence. In order to model the response under non-isothermal conditions experienced by many components, such as those in turbomachinery, however, it is necessary to incorporate temperature-dependence. Additionally, for materials subjected to thermal shock, temperature rate-dependence is also important. The purpose of this research is to develop a method of determining Chaboche viscoplasticity parameters that allows for consistent behavior with changing temperature. A quartet of candidate materials, 304 stainless steel, IN617, DS GTD-111, and Ti6242S, were chosen for their applications in turbomachinery, such as gas …