摘要
采用改造的分离式Hopkinson压杆实验装置并配合高速摄影装置,对冲击载荷下不同材料的圆环列系统的动态力学行为进行了实验研究,并应用动力有限元LS-DYNA对该系统进行了相应的数值模拟,讨论了不同圆环列系统的吸能特性以及不同参数的影响。结果表明圆环列结构具有较高的吸能效率,具有重要的应用价值。
The modified Split Hopkinson Pressure Bar system equipped with the high-speed camera is utilized to perform the experimental researches on the dynamic behavior of ring systems made of different materials subjected to impact loading. Correspondingly, comprehensive numerical simulations on the ring systems are conducted by the dynamic finite element software LS-DYNA. The energy absorption features of different ring systems and the influences of different parameters are discussed. The results show that the energy absorption efficiency of the ring systems is relatively high and the system is very valuable for engineering uses.
出处
《北京大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第3期312-316,共5页
Acta Scientiarum Naturalium Universitatis Pekinensis
基金
国家自然科学基金(10572002)资助项目
关键词
圆环列系统
SHPB技术
吸能
ring systems
SHPB technique
energy absorption
