Experiment Study on the Impact Limit of Basalt/Aramid Stuffed Whipple Shields

The impact limit equation is an important basis for risk assessment and the optimal design of stuffed Whipple shields. The internationally commonly used NASA impact limit equations and curves for Nextel/Kevlar stuffed Whipple shields (hereinafter referred to as improved NASA equations) cannot be accurately applied to the protection performance predicts of Chinese basalt/aramid fiber stuffed Whipple shields. This paper studies the hypersonic impact damage characteristics of the basalt/aramid fiber stuffed Whipple shields of the China certain large manned spacecraft. Based on the test data of three types of stuffed Whipple shields, two methods are adopted to modify the parameters of the NASA equations impact limit equation, and it is determined that it is suitable for The impact limit equations and parameters of domestic stuffed Whipple shields. The improved impact limit equations can provide higher prediction accuracy, and provide a reference for the engineering optimization design of shields and the risk assessment of on-orbit missions.