A study of damage characteristics caused by hypervelocity impact of reactive projectile on the honeycomb sandwich panel double-layer structure

REN Siyuan; WU Qiang; ZHANG Pinliang; SONG Guangming; CHEN Chuan; GONG Zizheng; LI Zhengyu

doi:10.11883/bzycj-2023-0272

Volume 44 Issue 7

Jul. 2024

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REN Siyuan, WU Qiang, ZHANG Pinliang, SONG Guangming, CHEN Chuan, GONG Zizheng, LI Zhengyu. A study of damage characteristics caused by hypervelocity impact of reactive projectile on the honeycomb sandwich panel double-layer structure[J]. Explosion And Shock Waves, 2024, 44(7): 073302. doi: 10.11883/bzycj-2023-0272

Citation:

REN Siyuan, WU Qiang, ZHANG Pinliang, SONG Guangming, CHEN Chuan, GONG Zizheng, LI Zhengyu. A study of damage characteristics caused by hypervelocity impact of reactive projectile on the honeycomb sandwich panel double-layer structure[J]. Explosion And Shock Waves, 2024, 44(7): 073302. doi: 10.11883/bzycj-2023-0272

Citation:

REN Siyuan, WU Qiang, ZHANG Pinliang, SONG Guangming, CHEN Chuan, GONG Zizheng, LI Zhengyu. A study of damage characteristics caused by hypervelocity impact of reactive projectile on the honeycomb sandwich panel double-layer structure[J]. Explosion And Shock Waves, 2024, 44(7): 073302. doi: 10.11883/bzycj-2023-0272

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A study of damage characteristics caused by hypervelocity impact of reactive projectile on the honeycomb sandwich panel double-layer structure

doi: 10.11883/bzycj-2023-0272

1.
Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China
2.
Science and Technology on Reliability and Environmental Engineering Laboratory, Beijing 100094, China

Received Date: 2023-08-02
Rev Recd Date: 2024-04-11

Available Online: 2024-04-28

Publish Date: 2024-07-15

Abstract

Abstract

With the prepared reactive projectiles, and the two-stage light gas gun was used to conduct hypervelocity impact experiments on the honeycomb double-layer structure target. A high-speed camera was used to record the impact process, so the evolution process of debris clouds during the impact of the reactive projectile on honeycomb panels was obtained. By recycling the targets, the perforation characteristics of the honeycomb plate were analyzed, and the damage characteristics of various components inside the structure were found. Numerical simulations of impact process are carried out, and the hypervelocity penetration effect of reactive projectiles is analyzed according to the experimental and numerical simulation results. The expansion motion law of debris clouds is obtained, revealing the damage mechanism of the coupling effect of impact-detonation of reactive projectiles on the target. The results indicate that the impact initiation characteristic of reactive projectile can form smaller inlet and larger outlet holes on honeycomb panel, and the diameter of the outlet perforation increases with the increase of impact velocity. Under the impact of reactive projectile, the perforation diameters of honeycomb sandwich panel for the entry perforation, exit perforation and honeycomb core perforation all increase with the increase of reactive projectile mass. The perforation diameters are not affected by the thickness of honeycomb sandwich panel. The perforation diameter and honeycomb core perforation diameter first increase and then decrease with the increase of honeycomb panel thickness. The entry perforation does not change with the increase of honeycomb core cell diameter. The exit perforation diameter and honeycomb core perforation increase with the increase of honeycomb core cell diameter. Reactive projectile can generate high-temperature debris cloud with higher expansion velocity, and the expansion velocity increases with the increase of impact velocity. The coupling effect of impact-detonation of reactive projectile leads to increase of the damage area on the internal components of the target. In the velocity range of 2–6 km/s, the diameter of the perforation hole formed by the reactive projectile on the honeycomb sandwich panel is about 1.3–1.8 times that of the aluminum alloy projectile, and the expansion velocity of the debris cloud is 1.8–3.2 times that of the aluminum alloy projectile. Compared with the aluminum alloy projectile, the reactive projectile increases the damage area of the debris cloud on the inner and rear plates of the honeycomb sandwich panel double-layer structure, and improves the damage efficiency.
- reactive projectile,
- hypervelocity impact,
- debris cloud,
- damage characteristics,
- coupling effect of impact-detonation

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References(30)

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