Peridynamic Analysis of Marine Composites under Shock Loads by Considering Thermomechanical Coupling Effects

摘要: Nowadays, composite materials have been increasingly used in marine structures because of their high performance properties. During service time, they may be exposed to extreme loading conditions such as underwater explosions. Temperature changes induced by pure mechanical shock loadings cannot neglected especially when smart are employed for condition monitoring critical systems a structure. Considering this fact, both the thermal effect on deformation and temperature need taken into consideration. Consequently, an analysis conducted fully coupled thermomechanical manner is necessary. Peridynamics newly proposed non-local theory which can predict failures without extra assumptions. Therefore, peridynamic model developed laminated composites materials. In study, numerical 13 ply subjected explosion using model. The pressure shocks generated applied top surface laminate uniform non-uniform load distributions. damage predicted compared with existing experimental results. simulation results obtained from uncoupled case also provided comparison. Thus coupling term effects crack propagation paths investigated. Furthermore, corresponding distributions