Multi-objective optimization under uncertainty for sheet metal forming

Pascal Lafon (1) , Pierre-Antoine Adragna (1) , von Dim Nguyen (2)

1 LASMIS - Laboratoire des Systèmes Mécaniques et d'Ingénierie Simultanée
2 Thai Nguyen University

Aleatory uncertainties in material properties, blank thickness and friction condition are inherent and irreducible variabilities in sheet metal forming. Optimal design configurations, which are obtained by conventional design optimization methods, are not always able to meet the desired targets due to the effect of uncertainties. This paper proposes a multi-objective robust design optimization that aims to tackle this problem. Results obtained on a U shape draw bending benchmark show that spring-back effect can be controlled by optimizing process parameters.

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

Pascal Lafon, Pierre-Antoine Adragna, von Dim Nguyen. Multi-objective optimization under uncertainty for sheet metal forming. MATEC Web of Conferences, 2016, 80, pp.10004. ⟨10.1051/matecconf/20168010004⟩. ⟨hal-02279480⟩