A new engineering model of debris cloud produced by hypervelocity impact

A series of numeric simulations for hypervelocity impact have been done at first. The work conditions are as follows: the material of the projectile and the target is 2A12, the impact velocity is 3–7 km/s, and the impact angle is 0°∼60°. Then the debris data identified by DebrisID program from numerical simulation results are analyzed. The model of debris cloud based on the statistical results is proposed, which includes five parts: the velocity of the debris cloud, the distribution functions of debris mass, velocity, space angles, and the relation of different distributions. A fast simulation method for debris cloud is developed at last, which is able to get detailed characteristic data of debris in short time. The debris cloud's image and characteristics agree well with results from numerical simulation and hypervelocity impact test.

► Debris cloud model has been build based on statistical regularities.
► The model includes the three distributions.
► Realized the fast simulation of the debris cloud used the debris cloud model.
► The simulation results agree well with experimental results.