Study on the Penetration Characteristics of Deep Space Impactor into Concrete

Abstract

In order to understand the effect of initial parameters on penetration characteristics when a deep space impactor penetrates concrete, a dynamic simulation model of deep space impactor penetration of concrete is established, and the accuracy of the simulation model is verified by ground tests. Through the simulation model, the penetration depth, penetration overload peak, and impactor structural strength of the impactor under different conditions such as different inclination angles, different invasion angles of attack, inclination angle and invasion angle coexist, and and other penetrating properties were analyzed. The results show that the angle of attack and the angle of attack should be minimized when the impactor is released, so that the deflection of the impactor's penetration trajectory is smaller, and the required penetration depth can be achieved with a lower invasion speed and a smaller peak of penetration overload. This article can provide some theoretical references for the structural design of deep space impactors.