Thin/thick-ply hybrid gradient laminate for low-velocity impact and compression-after-impact behaviors

Good delamination resistance using thin-ply materials has been proven by experimental methods. The thick-ply (standard) and thin-ply hybrid gradient design is expected to effectively suppress the impact damage and improve the compression-after-impact (CAI) strength. This is an interesting topic for design I: thick-thin-thick and design II: thin-thick-thin. This also introduces the following question: which option is a better design strategy for...