周期性金属桁架夹芯板的力学性能研究进展

Progress in the Study on Mechanical Properties of Periodic Metallic Truss Core Sandwich Panels

具有周期性桁架芯体的金属夹芯板是一种非常重要的超轻质结构.概要叙述了金属桁架夹芯板的几何模型和制备方法,重点介绍了金属桁架夹芯板力学性能在理论研究和实验研究方面的进展.分析了基体金属的性能、芯体的相对密度、芯体的拓扑结构、夹芯板的热处理以及芯体和面板的连接方式因素对夹芯板力学性能的影响.最后对未来的研究趋势进行了展望.

Metallic sandwich panels with periodic truss core are an important new structure. The geometric models and fabrication of periodic metallic truss core sandwich panels are introduced briefly in this paper. Emphasis is placed on the recent development of the experimental and theoretical research of mechanical properties of metallic truss core sandwich panels. The influence of key factors, including properties of parent metal, relative densities of truss core, an alternative core topology, heat treatment of sandwich panels and the influence of joining technique of truss core and panels on mechanical properties, are analyzed. Some future research trends are also presented.