Oblique penetration of ogive-nosed projectile into aluminum alloy targets

Wei, Haiyang; Zhang, Xianfeng; Liu, Chuang; Xiong, Wei; Chen, Haihua; Tan, Mengting

doi:10.1016/j.ijimpeng.2020.103745

Cited by 21 publications

(5 citation statements)

References 18 publications

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“…The deflection of the projectile is related to the shape of the warhead, the mechanical properties of the projectile and the target, the projectile speed, the inclination angle, etc. [22,23]. Therefore, the results of vertical test can not be directly extended to oblique penetration.…”

Section: Oblique Penetration Safety Angle Test and Damage Researchmentioning

confidence: 99%

Ballistic Performance of Ti6321 Titanium Alloy under Vertical and Oblique Penetration

Wang

Wan³

et al. 2023

J. Phys.: Conf. Ser.

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For the new marine Ti6321 titanium alloy, the penetration tests were carried out under vertical and oblique penetration conditions. The ballistic properties of Ti6321 titanium alloy with different structures and the macro and micro damage characteristics of the target were obtained. The influence of the structure on the ballistic performance and failure mechanism of the titanium alloy target plate was analyzed. The results show that Ti6321 titanium alloy exhibits different properties under vertical and oblique penetration conditions. In the vertical penetration test, the absolute penetration depth and the average crater diameter of the equiaxed target plate are smaller than those of the bimodal and Widmanstatten structure, which show a better resistance to vertical penetration. In the oblique penetration, the safety angle of the bimodal structure was smaller and showed better resistance to the oblique penetration.

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Section: Oblique Penetration Safety Angle Test and Damage Researchmentioning

confidence: 99%

Ballistic Performance of Ti6321 Titanium Alloy under Vertical and Oblique Penetration

Wang

Wan³

et al. 2023

J. Phys.: Conf. Ser.

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“…As a ductile material, the use of metals has resulted in systematic progress in the research of different projectiles [28,29], cross-sectional shapes [30,31], and impact angles [32,33] during penetration. Therefore, numerical simulation methods have been widely used in ductile target plates.…”

Section: Numerical Simulation Of Aluminum Projectile-target Penetrati...mentioning

confidence: 99%

Dynamic Response Analysis of Projectile Target Penetration Based on an FE-SPH Adaptive Coupling Method

Zhu

et al. 2023

Metals

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The penetration of projectiles into targets has a broad background in engineering. In this work, numerical simulations of the projectile-target penetration problem are conducted using the Finite Element Method (FEM), the Smoothed Particle Hydrodynamics (SPH) and the Finite Element–Smoothed Particle Hydrodynamics Adaptive Coupling Method (FE-SPH ACM) based on the LS-DYNA software package. First, the penetration experiments using aluminum targets and ceramic targets are simulated. The experimental and simulation results show that the FE-SPH ACM has the better accuracy in calculating the debris cloud head velocity and interface velocity, with an error of no more than 4%. Furthermore, we use the FE-SPH ACM to investigate the anti-penetration performance of aluminum/ceramic composite targets in different combinations. We find that the reasonable layout can improve the protective performance of multi-layered target, especially composite target plates with ceramic as the front layer. In addition, the ballistic limit velocities for ceramic-aluminum ratios of 3/7, 5/5 and 7/3 are approximately 1300 m/s, 1400 m/s and 1500 m/s, respectively. Obviously, increasing the proportion of ceramic materials can enhance the anti-penetration performance.

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“…Moreover, the simulations show that the timing of the peak in the deceleration history coincides with the wake separation and reattachment processes during penetration. As explained by Kong et al (2014) and by Wei et al (2021), the wake separation takes place when the projectile's shank detaches from the target, and reattachment is referred to the closing of the gap between them. Note also the second (lower) peak, at about t = 65 μs, which indicates that another separation/reattachment event takes place, to a lesser extent, at this time.…”

Section: General Observationsmentioning

confidence: 99%

The penetration and ricochet of ogive-nosed rigid projectiles obliquely impacting metallic targets

Vayig

Rosenberg

2021

International Journal of Protective Structures

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A large number of 3D numerical simulations were performed in order to follow the trajectory changes of rigid CRH3 ogive-nosed projectiles, impacting semi-infinite metallic targets at various obliquities. These trajectory changes are shown to be related to the threshold ricochet angles of the projectile/target pairs. These threshold angles are the impact obliquities where the projectiles end up moving in a path parallel to the target’s face. They were found to depend on a non-dimensional entity which is equal to the ratio between the target’s resistance to penetration and the dynamic pressure exerted by the projectile upon impact. Good agreement was obtained by comparing simulation results for these trajectory changes with experimental data from several published works. In addition, numerically-based relations were derived for the penetration depths of these ogive-nosed projectiles at oblique impacts, which are shown to agree with the simulation results.

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Oblique penetration of ogive-nosed projectile into aluminum alloy targets

Cited by 21 publications

References 18 publications

Ballistic Performance of Ti6321 Titanium Alloy under Vertical and Oblique Penetration

Ballistic Performance of Ti6321 Titanium Alloy under Vertical and Oblique Penetration

Dynamic Response Analysis of Projectile Target Penetration Based on an FE-SPH Adaptive Coupling Method

The penetration and ricochet of ogive-nosed rigid projectiles obliquely impacting metallic targets

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