Experimentation Research And Simulation Of Bullet With High Velocity Penetration On Concrete

Studies of missile impact with reinforced concrete structure have become a focus in current projectile penetration field. This paper presents experimentation research and computer simulation studies of the projectile penetration into concrete. The main contents are as follows:(1) Configuration design and Experiment researchThe projectile configuration of penetration weapon is designed according to the technical and tactics target, including the structure design of the projectile , the structure design of the empennage and the structure design of the concrete target. The simulation experiments studying the relation between velocity and concrete intensity and penetration depth have been carried out. Via the studies of design and experiment, consummate the design project of penetration weapon.(2) Theoretical researchSome classical Experience formulas were recommended and discussed. There were a contrast between the results from the formulas and the result from experiment. Some characteristics of the formulas were analyzed.Based on the theory of vacuum expanding, the theoretical model about the relation between exterior stress and velocity has been established. Acceleration and velocity equation were derived. According to the theoretical research, result from the model has no bias compared with the experiment data. Some factor which effect the penetration depth such as projectile mass, shape of projectile, density and intensity of concrete were analyzed.At the end of the paper, simulating the process of penetration with the LS-DYNA program. The result from the simulation is consistent with the experiment.