铝合金三角形波纹夹芯板抗平头弹冲击的损伤特性研究

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摘要为研究铝合金三角形波纹夹芯板受到平头弹冲击后的损伤形式与抗冲击性能，利用一级气炮对铝合金三角形波纹夹芯板的两种冲击位置进行冲击试验。根据试验数据，对比分析三角形波纹夹芯板及等面密度单层板的弹道极限速度与耗能，并结合有限元仿真分析夹芯板的动态损伤过程、动态载荷响应及损伤机理。研究结果表明，三角形波纹夹芯板损伤形式为剪切破坏、撕裂破坏与弯曲变形。波纹板的抗冲击性能低于等面密度的单层板，并且波纹板节点位置的抗冲击性能高于基座位置。弹体冲击速度较低时，波纹板的耗能低于单层板，随着冲击速度增加，波纹板节点位置的耗能高于单层板，基座位置的耗能与单层板相近。此外，波纹板的动态载荷响应与失效机理均受到冲击位置与弹体冲击速度的影响。

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	任光辉1
	赵鑫2
	邓云飞2
	杨笑岳2

关键词 ：波纹夹芯板, 失效模式, 弹道极限速度, 冲击

Abstract：In order to study the impact performance and damage characteristics of aluminum alloy triangular corrugated sandwich plates against blunt-nosed projectile, the impact test on the aluminum alloy triangular corrugated sandwich plates was carried out with the one-stage gas gun system. According to the test data, the ballistic limit velocity and energy consumption of triangular corrugated sandwich plate and monolithic plate are analyzed, and the dynamic damage process, dynamic load response and damage mechanism are analyzed combined with finite simulation. The results show that the damage modes of triangular corrugated sandwich plate are shear failure, tear failure and bending deformation. The impact resistance of the corrugated plate is lower than that of the monolithic plate, and the impact resistance of the corrugated plate at node position is higher than the base position. At low impact velocities, the energy dissipation of the corrugated plate is lower than that of monolithic plate. As the impact velocity increases, the energy dissipation at the node position of the corrugated plate is higher than that of the monolithic plate, and the energy dissipation at the base position is similar to that of the monolithic plate. In addition, the dynamic load response and the failure mechanism of the corrugated plate are affected by the impact position.

Key words： corrugated sandwich plate failure mode ballistic limit velocity impact

收稿日期: 2022-08-23 出版日期: 2024-02-15

引用本文:

任光辉1，赵鑫2,邓云飞2，杨笑岳2. 铝合金三角形波纹夹芯板抗平头弹冲击的损伤特性研究[J]. 振动与冲击, 2024, 43(3): 179-188.
REN Guanghui1, ZHAO Xin2, DENG Yunfei2, YANG Xiaoyue2. Damage characteristics of aluminum alloy triangular corrugated sandwich plate against flat headed bullet impact. JOURNAL OF VIBRATION AND SHOCK, 2024, 43(3): 179-188.

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http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2024/V43/I3/179

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