Thermal-mechanical numerical simulation of filled projectile penetrating concrete target

The penetration process of filled projectile was simulated using ABAQUS/Explicit software code. The effect of nose shape on thermal-mechanical response of explosive charge was researched. Thermal elastic-plastic, John-Cook, and JH-2 constitutive models were chosen for describing explosive materials, steel projectile and reinforced concrete, respectively. The damage characteristics of concrete were analyzed macroscopically. The nose shape of projectile has an effect on the stress state and the temperature of explosive charge. The temperatures of the head zones and the outer surface of explosive charge were compared, which showed that the maximum temperature in the head is much higher than the outer surface. It was pointed out that the heat due to friction between explosive charge and projectile does not easily lead to ignition. The dangerous point mainly lies in the surface or interior of the head. The present numerical simulation provides some fundamental results for projectile and explosive charge structure design.