Debris Cloud Characteristics of Mono-and Multi-Plates under Hypervelocity Impact

To create a better understanding of the debris characteristic of spacecraft that is shielded by typical structure walls, the mono- and multi-plates under hypervelocity impact are carried out by using the test and numerical simulation method. The shadowgraphs of debris clouds, velocity, dimension and mass distribution of debris are presented as well.It is observed that, the number of fragments increases with projectile and target's dimension and impact velocity. The number of small debris increases more rapidly with the increase of impact velocity than that of large debris. It is also concluded that a number of large debris will break off from main structure in multi-plates impact, with 100m/s magnitude of separating velocity.