ABSTRACT
This paper analyzes the energy absorption and failure modes of 2 mm monolithic and 2 × 1 mm double-layer in-contact plates of Q235 steel target by ogival nose-shaped projectiles at 0°, 15°, 30°, and 45° impact angles. During modeling, the target is modeled as a deformable three-dimensional model and the projectile as a rigid body. All numerical simulations are performed in ABAQUS/CAE. The velocity of the projectile varies from 134.93 m/s to 500 m/s. To characterize the material behavior of target plates, the Johnson-Cook (JC) elasto-viscoplastic material model and damage model are implemented. Ballistic resistance, failure mechanism, and energy absorption capacity of the target plates are performed within the configurations. The failure mode is found to be petal formation in both single-layer and double-layer target plates. The main focus of this research is to determine the relationship between obliquity and the drop in projectile impact velocity.
