冲击和爆炸荷载作用下金属褶曲夹芯板壳结构动力性能研究

Metallic folded cores sandwich panels and shells have superior performance and great potential to be used in structural and protective engineering, but the investigations into performance of this type of novel sandwich structures under impact loadings and blast loadings are very limited. In this project, based on a large number of experiments, analytical and numerical analysis, systematic investigations of this sandwich panels subjected to static, low velocity impact, high velocity impact and blast impact loadings will be made, and the mechanical property, energy absorbing capacity and failure mode will be examined. Attention will be focused on deformation modes, the associated energy absorbing mechanisms and the overall failure pattern of the plates and shells. The guidelines for optimum design of such panels and the analytical models for the whole range of static, impact and blast loadings will be proposed. The research findings will serve as the theoretical and technological foundation for the practical application in the structural engineering, protective engineering and vehicle and vessel structures.

金属褶曲夹芯板壳结构具有优越的力学性能和广泛的工程应用前景，但当前对该类结构在冲击和爆炸荷载作用下的试验和解析研究非常有限。本项目以金属褶曲夹芯板壳结构为研究对象，采用一些列动静力试验和力学解析的方法，系统开展该类结构静力、低速冲击、高速冲击以及爆炸荷载作用下的力学性能、能量吸收和破坏模式等方面的研究，旨在揭示金属褶曲夹芯板壳结构在各类荷载作用下的变形模式、能量吸收原理及局部和整体失效机理，提出该类结构性能最优的设计方案，建立结构在各类荷载作用下的宏观解析模型，为其在结构工程、防护工程以及车船等壳体结构中的应用提供理论和技术支撑。

金属褶曲夹芯板壳结构具有优越的力学性能和广泛的工程应用前景，但当前对该类结构在冲击和爆炸荷载作用下的试验和解析研究非常有限。项目以金属褶曲夹芯板壳结构为研究对象，采用一些列动静力试验和力学解析的方法，系统开展该类结构静力、低速冲击、高速冲击荷载作用下的力学性能、能量吸收和破坏模式等方面的研究，揭示了金属褶曲夹芯板壳结构在各类荷载作用下的变形模式、能量吸收原理及局部和整体失效机理，建立了结构在各类荷载作用下的宏观解析模型，为其在结构工程、防护工程以及车船等壳体结构中的应用提供理论和技术支撑。