Energy absorption and impact resistance of sandwich composite alloy structures under dynamic impact

A new sandwich composite structure is prepared based on warm rolling process. The dynamic mechanical property of the sandwich composite structure is investigated through split Hopkinson pressure bar (SHPB) experiment. The Johnson–Cook constitutive model is modified based on the SHPB experiment result, taking into account the synergy between strain softening and strain rate softening. Projectile penetration simulation is performed on the sandwich...