Analysis of dynamic Failure of Plastic Spherical Shells Under Local Impact

摘要

To study the dynamic failure of the plastic spherical shell impacted by a mis- sile. Methods The deformation mode of spherical shells was given by introducing isometric transformation. The govering equation of motion of the rigid-plastic spherical shell was given by energy balance. This equation was solved by using Runge-Kutta method. Results the rela- tionships between the impact force, dimple radius, central point deflection and time waere ob- tained.