Impact resistance of 304L type stainless steel plates: Identification of Lemaitre and Chaboche damage model's parameters at different strain rates. Comparison with experimental results

The aim of the study is to validate the Lemaitre Chaboche damage model in t he explicit finite element code EUROPLEXUS. Tensile tests have been perform ed on smooth and notched specimens of 304L type stainless steel to determin e Lemaitre and Chaboche damage model's parameters at strain rates from quas i-static to 150 s(-1) with different triaxiality ratios. The procedure of p arameter's identification is based on finite element calculations. The dama ge parameters are identified through the experimental measurements. We pres ent the results of an experimental investigation of the impact resistance o f Inox 304L plates and compare these results with numerical simulations. Th e goal of the study is to determine the magnitude order of the perforation energy.