Ballistic Resistance of Novel Amorphous-Alloy-Reinforced Perforated Armor

Cui, Tianning; Qin, Qing Hua; Yan, Wenmin; Wang, Tao; Zhang, Jianxun

doi:10.1007/s10338-020-00180-1

Cited by 7 publications

(3 citation statements)

References 25 publications

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“…where ∆ε eq is the equivalent plastic strain increment for a calculated cycle, and ε f is equivalent fracture strain [12,44,45]. The failure model parameters of Q345S, 304SS, and reactive fragment are shown in Table 6.…”

Section: Numerical Simulation Parametersmentioning

confidence: 99%

Perforation Characteristics of Three-Layer Steel Plates Subjected to Impact with Different Shapes and Velocities of Reactive Fragments

Sun,

Ma,

Cai

2023

Applied Sciences

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In this paper, the AUTODYN/Smoothed Particle Hydrodynamics (SPH) method was used to study the impact of reactive fragments on three-layer equidistant steel plates. The perforation characteristics of equidistant three-layer steel plates were investigated along with the parameters of combustion energy release from reactive fragments under varied impact velocities and shape conditions. The modification of the steel plates’ perforation diameter was investigated using the dimensional analysis approach. The shock wave pressure and chemical reaction characteristics were examined using the shock wave theory. The results show that within the examined impact velocity range, the perforation diameter initially increased and then decreased as the impact velocity of the reactive fragment rose. In addition, the perforation diameter was approximately 1.5–3 times the diameter of the reactive fragment. As the impact speed increased, the active reaction generated by the reactive fragments became more sufficient. The energy released contributed to the impact’s pressure rise; in addition, the temperature of the steel plate was raised in part by the reactive fragment impact, making the steel plate more prone to melting. The results of this investigation provide important support for a detailed understanding of the rules governing the failure of steel plates under the impact of reactive fragments as well as the combustion of reactive fragments under impact.

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Section: Numerical Simulation Parametersmentioning

confidence: 99%

Perforation Characteristics of Three-Layer Steel Plates Subjected to Impact with Different Shapes and Velocities of Reactive Fragments

Sun,

Ma,

Cai

2023

Applied Sciences

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“…At the same time, an excellent correlation between finite element modeling and ballistic testing results was obtained, Figure 15. The application of amorphous alloy reinforced perforated armor (ARPA) was suggested by Cui et al [49]. The main advantage of the amorphous component with random atomic arrangement compared to the common crystalline atomic arrangement is a unique combination of mechanical properties.…”

Section: Finite Modelling and Ballistic Testingmentioning

confidence: 99%

“…However, a lower impact strength is offset by the inherent crack arresting properties of perforated plates. In [49], the effect of various ARPA thicknesses, from 0 to 1.5 mm over the RHA base perforated plate (overall thickness 6 mm) were analyzed. It was found that the increase in ARPA thickness enhances the effectiveness of the perforated plate by increasing the projectile erosion.…”

Section: Finite Modelling and Ballistic Testingmentioning

confidence: 99%

Perforated Plate for Ballistic Protection—A Review

Baloš

Howard²,

Brezulianu

et al. 2021

Metals

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In recent years, the interest of the scientific community in perforated plates for ballistic protection has increased. Perforated plates do not represent protection by themselves, rather, they are used in the armour systems of armoured vehicles, in conjunction with base armour, since they are intended to induce bend stresses, where a penetrating core fracture occurs. The fragments are subsequently stopped by base armoured vehicle armour. Although for the first time used several decades ago, perforated plates are found to be attractive even today. The main reason is the combination of very convenient properties. Besides high mass effectiveness, they possess a high multi-impact resistance, since their perforations arrest cracks. Therefore, a relatively wide array of materials is suitable for perforated plate fabrication, ranging from alloy steel to some types of cast iron. Being made of metallic materials, raw material costs are relatively low compared to ceramics or composite materials, making them very attractive for present and future armoured vehicles. Finally, armour system consisting of a perforated plate and base plate at some distance, reduce the effectiveness of both shaped charge jets and act as blast mitigators.

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