弹体高速侵彻两种强度混凝土靶的对比研究

With the development of weapon systems, high strength concrete has been applied to the protection facilities. In order to study the phenomenon and law of projectile penetrating into high-strength concrete, the experiment of projectile penetrating into C60 high-strength concrete target is carried out, and the experimental results are compared with those of C35 normal strength concrete. The penetration depth and projectile erosion are analyzed by means of calculation method based on cavity expansion theory, empirical penetration formula method and nodes back-off method. The calculated and experimental results show that the overload of projectile penetrating into C60 concrete is 1.8 times of that of projectile penetrating into C35 concrete, and the penetration depth is 52%. The surface damage of C60 concrete target is greater, indicating that the brittleness of concrete gets larger with the increase of strength. The erosion of projectile penetrating into high strength concrete is more serious in the case of the same aggregate cutting conditions, indicating that the erosion effect of high-strength mortar gets larger.