Effects of projectile parameters on the momentum transfer and projectile melting during hypervelocity impact

Liu, Wenjin; Zhang, Qingming; Long, Renrong; Gong, Zizheng; Ren, Jin; Hu, Xin; Ren, Siyuan; Wu, Qiang; Song, Guangming

doi:10.1016/j.dt.2023.06.012

Cited by 6 publications

(1 citation statement)

References 42 publications

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“…Conventional ammunition is ineffective against robust and complex defensive structures. To achieve optimal destructive effectiveness, hard target-penetrating ammunition with features such as programmable layers, cavity recognition, and medium identification has become a focal point of research in various countries (Dang and Li, 2014;Zhang, 2018;Liu et al, 2023). The process of penetrating hard targets involves highly non-linear behavior under strong impact loads.…”

Section: Introductionmentioning

confidence: 99%

The protective performance of rubber pads for penetration fuze

Ding,

Zhang,

Peng

et al. 2023

Front. Mater.

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To ensure the reliable functioning of hard target-penetration fuze on the battlefield, this study focuses on research related to fuze protective pads. The main factors causing fuze functional failure are summarized, and a simplified model of projectile penetration into target plates is established. The design conditions for the yield stress parameter of the fuze casing material are derived based on stress wave propagation theory. Modal analysis of the projectile is conducted using dynamic simulation software ANSYS to determine its vibration modes and low-pass filtering frequency. Static compression experiments are performed on different rubber materials (nitrile rubber, fluorine rubber, silicone rubber, and natural rubber) to obtain stress–strain curves and constitutive model parameters. Marshall hammer tests were carried out on rubber pads of different materials and thicknesses, confirming the validity of the simulation results and the feasibility of rubber filtering. The study indicates that when using a 2 mm thick rubber pad for protection, natural rubber provides the best protection. When using a 6 mm thick rubber pad, nitrile rubber shows the best protective performance. Under a 13-tooth tooling impact load, the best protection is achieved using a 2 mm thick natural rubber pad. When using a 6 mm thick pad, silicone rubber provides the best protection. Under a 15-tooth tooling impact load, fluorine rubber provides the best protection when using a 2 mm thick pad, while silicone rubber offers the best protection when using a 6 mm thick pad. Under a 17-tooth tooling impact load, natural rubber offers the best protection when using a 2 mm thick pad, and fluorine rubber demonstrates the best protection when using a 6 mm thick pad. The obtained research results provide a reference for protective methods of hard target-penetration fuze.

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Section: Introductionmentioning

confidence: 99%

The protective performance of rubber pads for penetration fuze

Ding,

Zhang,

Peng

et al. 2023

Front. Mater.

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An improved multiphase equation of state for aluminum in hypervelocity impact

Wu,

Zhang,

Zhong

et al. 2024

International Journal of Impact Engineering

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Study on the attenuation pattern of stress wave in granite impacted by 30CrMnSiA alloy steel projectiles at 1.5–5.5 km/s

Li,

Zhu,

et al. 2024

Physics of Fluids

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The damage ability of hypervelocity kinetic energy projectile penetrating ground has become a hotspot in modern military research. In this study, a hypervelocity impact test on a granite target subjected to projectiles using a two-stage light gas gun is conducted to study the stress wave evolution in granite under hypervelocity penetrations. The parameters of the *MAT_JOHNSON_HOLMQUIST_CERAMICS(JH-2) constitutive equation are calibrated using the results of the splinter impact test and the static test, and numerical simulations are performed using the smoothed particle hydrodynamics method coupled with finite element method (SPH-FEM coupled method) to extend the resulting data. A formula for calculating the stress wave peak attenuation is established, indicating that the maximum impact pressure produced by the hypervelocity impact decreases exponentially with scaling distance, and the attenuation coefficient is related to the degree of rock damage. Additionally, the attenuation of the speed of sound is used to characterize rock damage, and the damage deterioration law of granite under hypervelocity impact is analyzed based on the damage factor.

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Effects of projectile parameters on the momentum transfer and projectile melting during hypervelocity impact

Cited by 6 publications

References 42 publications

The protective performance of rubber pads for penetration fuze

The protective performance of rubber pads for penetration fuze

An improved multiphase equation of state for aluminum in hypervelocity impact

Study on the attenuation pattern of stress wave in granite impacted by 30CrMnSiA alloy steel projectiles at 1.5–5.5 km/s

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