The global deformation and local damage analysis of filled metallic cylindrical shells impacted by missiles

A group of theoretical models has been developed for analyzing transient dynamic response to filled metallic cylindrical shells impacted by flat-nosed missiles at normal obliquity on the basis of the analogy modeling method of beam-on-foundation. It can be used for solving the global deformation and the local failure of cylindrical shells in the impact process. The ballistic limit speed and impact response history have been calculated by this group of theoretical models, and the inner pressure effect on the ballistic limit speed and some parameters are discussed at length. The quantitative relationship between internal pressure and the ballistic limit speed and some significant conclusions have been obtained, which are basically identical with previous experimental results. Project supported by Shanxi Natural Science and Returnee Foundations (no. 971004)