复合材料对称元件的缓冲吸能性能研究

he energy-absorption capability of composite structures has received more and more attention, and has been applied in practical fields. Most experimental research has demonstrated that well-designed composite symmetrical elements can absorb more impact energy than metal elements with same weight. On the basis of research findings of author, the paper summarizes the primary work of experimental research in energy-absorption capability of composite symmetrical elements, including macroscopic collapse modes, load-displacement curves, micro-fracturing modes and influencing factor. Some representative analysis models are presented and compared to find their merit and defect. Finally the further research content is discussed in the paper.