轻质多孔夹芯结构的弹道侵彻行为研究进展

The classical cellular sandwich panels composed of two thin, stiff face sheets separated by a novel cellular core are a class of promising advanced lightweight multi-functional structures, possessing high specific stiffness, high specific strength, excellent mitigation and energy absorption, and high designability. Cellular sandwich structures have been paid much attention in many fields, such as the aerospace industry, transportation and structural protection. Moreover, the success cases have been presented in practical engineering applications. In order to clarify the mechanisms of penetration and energy dissipation and extend the application ranges, investigations on ballistic performance of lightweight cellular sandwich structures are reviewed and prospected. Firstly, the structural features and types of lightweight cellular sandwich structures are summarized. Next, mechanisms of penetration and energy dissipation, and lightweight design are reviewed systematically. Finally, the problems and challenges existing in the current research on ballistic performance of lightweight cellular sandwich structures are prospected.