A Computational Investigation on the Effects of Hull Geometry and Stiffeners on the Axial Crushing Strength and Behavior of Aluminum High Speed Crafts

Abstract

This work focuses on the crushing behavior of aluminum high speed crafts in the case of axial bow collision to a rigid structure. LS-DYNA code is used in analyses. Some available experimental prototypes tested under axial loading are first successfully simulated in the LS-DYNA environment. Then the effects of hull breadth, hull curvature, and longitudinal stiffeners on the crushing strength and behavior of the aluminum high speed craft are investigated in detail.