Experimental and numerical investigation of the effects of load on the penetration behavior of armor-piercing rods into steel targets

FU Ji; JI Yangziyi; GUO Tengfei; LIU Ji’an; LI Xiangdong

doi:10.11883/bzycj-2023-0379

Volume 44 Issue 6

Jun. 2024

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FU Ji, JI Yangziyi, GUO Tengfei, LIU Ji’an, LI Xiangdong. Experimental and numerical investigation of the effects of load on the penetration behavior of armor-piercing rods into steel targets[J]. Explosion And Shock Waves, 2024, 44(6): 063301. doi: 10.11883/bzycj-2023-0379

Citation:

FU Ji, JI Yangziyi, GUO Tengfei, LIU Ji’an, LI Xiangdong. Experimental and numerical investigation of the effects of load on the penetration behavior of armor-piercing rods into steel targets[J]. Explosion And Shock Waves, 2024, 44(6): 063301. doi: 10.11883/bzycj-2023-0379

Citation:

FU Ji, JI Yangziyi, GUO Tengfei, LIU Ji’an, LI Xiangdong. Experimental and numerical investigation of the effects of load on the penetration behavior of armor-piercing rods into steel targets[J]. Explosion And Shock Waves, 2024, 44(6): 063301. doi: 10.11883/bzycj-2023-0379

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Experimental and numerical investigation of the effects of load on the penetration behavior of armor-piercing rods into steel targets

doi: 10.11883/bzycj-2023-0379

1.
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
2.
Xi’an Modern Control Technology Research Institute, Xi’an 710065, Shaanxi, China

Received Date: 2023-10-16
Rev Recd Date: 2024-02-19

Available Online: 2024-03-13

Publish Date: 2024-06-18

Abstract

Abstract

In order to examine the influence of loads on the penetration behavior of the armor-piercing rod in a steel target, two sets of experiments were performed where both loaded and unloaded rods were used to penetrate 603 armored steel plates. Structural failures of the plates were observed under both loaded and unloaded conditions. Subsequently, numerical simulation methods were employed to analyze the penetration characteristics of both loaded and unloaded armor-piercing rods under various conditions, including incident angles of 45° and 60°, and impact velocities ranging from 1300 to 1600 m/s. An analysis was conducted to evaluate the effects of loads, incident angles, impact velocities, and load centroid positions on both the penetration depth and deflection angle of the rods. The research findings indicate that the inclusion of loads substantially enhances the oblique penetration depth of the armor-piercing rod while simultaneously reducing the ballistic deflection angle, thereby effectively improving the overall penetration efficiency. Conversely, in the case of positive penetration, the energy consumption caused by the load striking the target plate’s surface impedes the armor-piercing rod’s ability to penetrate. It is noteworthy that under an impact velocity of 1400 m/s and an incident angle of 60°, the inclusion of loads results in a decrease in the critical jump velocity of the armor-piercing rod. Moreover, observations revealed that as the distance between the centroid of the armor-piercing rod and its head surpasses half of the rod’s length, there is an increase in penetration depth accompanied by a corresponding decrease in the deflection angle. Specifically, it has been found that an increased distance between the centroid of the armor-piercing rod and its head leads to an improvement in penetration effectiveness. These findings highlight the substantial impact of load position on the penetration effectiveness and offer valuable insights for future design optimization. The research outcomes offer essential support and guidance for the design of high-speed kinetic energy missiles, thereby facilitating the enhancement of their penetration capabilities.
- penetration,
- armor piercing rod,
- load,
- high-speed kinetic energy missile

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References

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