本文利用Hopkinson压杆实验装置,对M739引信用支筒的动态屈曲性能进行了实验研究,首次测出壳体屈曲时的临界载荷及屈曲时间,同时发现大部分支简——组合壳体的屈曲形式是菱形波,个别支筒的屈曲形式是环形波和三角形波,这不仅为理论分析提供准确可靠的依据,而且为改进工程设计提高支筒性能,提高引信安全性及瞬发度有重要价值。关键词:冲击载荷、组合壳体、塑性屈曲、实验技术。 In this paper, using the Hopkinson pressure bar experimental device, the experimental study on the dynamic buckling performance of the M739 fuze with a branch tube, for the first time to determine the critical load and buckling time of the shell buckling, and found that most of the buckling - composite shell buckling In the form of diamond wave, the buckling modes of individual cylinders are annular wave and triangular wave, which not only provide accurate and reliable basis for theoretical analysis, but also have important value for improving the branch design and improving the security and instantaneous degree of fuze . Key words: impact load, composite shell, plastic buckling, experimental technique