Study on the Penetration Characteristics of Water Entry Rod Projectile into Liquid Cabin at an Attack Angle

The penetration of a projectile into warship broadside liquid cabin is usually non-ideal process. To explore the protective effects large against rod projectiles and to provide reference for design new structures, ballistic impact tests penetrating at different attack angles were carried out. Combined with numerical calculation, angle on water entry characteristics as well their failure modes studied. overturning yawing in analyzed. pressure load deformation/failure identified. results showed that: multiple occur an initial during liquid; yaw direction mainly affected by attitude; undergoes four basic modes, namely, asymmetric mushrooming nose, side erosion, overall plastic bending fracture; actual combination modes; fracture are related length diameter ratio, velocity; front plate may undergo tearing along central hinge line plate: small angle, tear “I” shaped, it “X”-shaped.