Dynamic analysis of cylindrical shells subject to multiple blasts using FSI

Localised pressure pulse loads can pose a significant threat to structural elements and critical equipment may cause failure damage in the target due concentrated energy delivered upon localised area of target. The impulse impinged local at contact interface exceed 80% total that charge deliver infinite target, leading potential perforation element. When multiple charges are detonated, advection gaseous products depends, among other parameters such as fluid density, on type blast wave interference superposition. This work examines influence detonations blasted air external surface cylindrical shells. Two types were considered, viz. simultaneous sequential. In both cases positioned 50mm 75mm stand-off right left shell. Fluid-Structure Interaction (FSI) phenomenon was investigated each scenario. registered with gauge points rigid implemented an uncoupled study flexible which demonstrated different mode shapes occurring shell A dimensionless parameter defined based Gaussian distribution function associated load shape, renders probability potentially be imparted