Finite element analysis of filament-wound composite pressure vessel under internal pressure

In this study, finite element analysis (FEA) of composite overwrapped pressure vessel (COPV), using commercial software ABAQUS 6.12 was performed. The study deals with the simulation of aluminum pressure vessel overwrapping by Carbon/ Epoxy fiber reinforced polymer (CFRP). Finite element method (FEM) was utilized to investigate the effects of winding angle on filament-wound pressure vessel. Burst pressure, maximum shell displacement and the optimum winding angle of the composite vessel under pure internal pressure were determined. The Laminae were oriented asymmetrically for [0 degrees,0 degrees] s,[15 degrees,-15 degrees] s,[ 30 degrees,-30 degrees] s,[45 degrees,-45 degrees] s,[55 degrees,-55 degrees] s, [60 degrees,-60 degrees] s,[75 degrees,-75 degrees] s,[90 degrees,-90 degrees] s orientations. An exactelastic solution along with the Tsai-Wu, Tsai-Hill and maximum stress failure criteria were employed for analyzing data. Investigations exposed that the optimum winding angle happens at 55 degrees winding angle. Results were compared with the experimental ones and there was a good agreement between them.