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Article Dans Une Revue Journal of Strain Analysis for Engineering Design Année : 2012

Identification of hardening parameters using finite element models and full-field measurements: some case studies

Laurent Robert
  • Fonction : Auteur correspondant
Vincent Velay

Résumé

This paper is focused on the identification of elasto-plastic behaviour parameters of aluminium alloy 2024-T3 using full-field measurements. An orthotropic Hill criterion including an isotropic hardening is considered. Standard tensile tests provide a first set of parameters. Some of these parameters are optimised thanks to an inverse modelling including finite element analysis and experimental full-field displacement measurements. This so-called Finite Element Model Updated (FEMU) process is based on different specimen geometries which induced heterogeneous strain fields. Full-field measurements are provided by Digital Image Correlation (DIC) technique. The aim of this work is to study the impact of the specimen shape that gives the heterogeneous strain fields on the identification of isotropic hardening parameters. Results are compared and discussed.
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Dates et versions

hal-00736790 , version 1 (29-09-2012)

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Laurent Robert, Vincent Velay, Nicolas Decultot, Souleymane Ramde. Identification of hardening parameters using finite element models and full-field measurements: some case studies. Journal of Strain Analysis for Engineering Design, 2012, 47 (1), pp.3-17. ⟨10.1177/0309324711430022⟩. ⟨hal-00736790⟩
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