Détermination numérique de courbes limites de formage en fonction de la température pour un alliage d'aluminium 5086

Xingrong Chu (1) , Lionel Leotoing (1) , Dominique Guines (1) , Eric Ragneau (1)

1 LGCGM - Laboratoire de Génie Civil et Génie Mécanique

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.

Domaines: Mécanique des matériaux [physics.class-ph]; Mécanique des matériaux [physics.class-ph]

Xingrong Chu, Lionel Leotoing, Dominique Guines, Eric Ragneau. Détermination numérique de courbes limites de formage en fonction de la température pour un alliage d'aluminium 5086. 20ème Congrès Français de Mécanique, Aug 2011, Besançon, France. pp.1-6. ⟨hal-00953786⟩