Détermination numérique de courbes limites de formage en fonction de la température pour un alliage d'aluminium 5086
Résumé
Accurate assessment of the sheet formability incorporating the operating conditions (temperature and strain rate) encountered during a forming process enables more reliable results from the numerical simulation process. The warm sheet forming technique can increase the formability greatly and it should be taken into account when developing predictive tools of FLC (Forming Limit Curves). The development of a simple Marciniak and Kuczynski (M-K) model, based on a Finite Element formulation, has highlighted the influence of mechanical behavior identified for an aluminium alloy 5086 on the determination of FLC.
Origine : Fichiers produits par l'(les) auteur(s)
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