A new approach to damage and material fatigue

Dr. Michela Eleuteri

Abstract

The aim of this compact course is to present a new approach in the study of oscillating elastoplastic bodies subject to fatigue, with the intent to model the relationship between plastic deformation, energy dissipation and material fatigue. We interpret fatigue as the material failure resulting from cycling loading, which is manifested by heat release and material softening. Our main modelling assumption is that fatigue accumulation rate is proportional to the plastic dissipation rate.
We deal first with the thermodynamical model and then present some recent related mathematical results.

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TUM Mathematik Rutschen Universit√§t der Bundeswehr M√ľnchen Technische Universit√§t Graz Karl-Franzens-Universit√§t Graz Technische Universit√§t M√ľnchen
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