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An inverse method for the identification of a set of crystal plasticity parameters is introduced and applied to in situ tensile tests on steel polycrystals. Various mean grain sizes are obtained with different conditioning of AISI 316LN austenitic stainless steel. Identification is based on a weighted Finite Element Model Updating (FEMU) using both displacement fields at the microscale and macroscopic...
From infrared thermography, a quantitative analysis of heat dissipation sources is proposed via the thermomechanical modeling of a fatigue test on a specimen with a varying cross-section. A new procedure is introduced to achieve this goal, and its application to an experimental case of self-heating at a single load level is shown to provide complete identification of a probabilistic model of micro-plasticity.
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