Experimental research on damage characteristics of multi-spaced plates with long rods of steel and W-Zr reactive material at hypervelocity impact

Shang, Cheng Jia; Zhang, Qingming; Lu, Yangyu; Long, Renrong; Guo, Xueshi; Hu, Xin

doi:10.1016/j.matdes.2022.110564

Cited by 14 publications

(2 citation statements)

References 20 publications

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“…Reactive penetrators have drawn extensive attention around the world [1][2][3] , due to the great prospect of improving damage effects. To manufacture high-performance reactive penetrators, two kinds of typical reactive materials have been widely studied, refer to W/Zr reactive alloy and PTFE/Al reactive composite.…”

Section: Introductionmentioning

confidence: 99%

Numerical study on damage effects of segmented reactive-core penetrator impacting double-layer steel targets

Yan

Jiang

Zhou

et al. 2023

J. Phys.: Conf. Ser.

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Reactive penetrator has stronger damage effects due to the combination of penetration and blasting. In this paper, numerical simulations are carried on by LS-DYNA to understand the penetration mechanism of a new type of segmented reactive-core penetrator. The primary core and secondary core are made of W/Zr reactive alloy and PTFE/Al reactive composite respectively, which are coated by a steel shell. Different from the Penetrator with Enhance Lateral Effect (PELE), the penetrator in this investigation performs a “self-sharpening” behaviour due to its high-density primary core and prefabricated groove. It is shown that the impact velocity of the penetrator has an influence on the fragmentation of targets, and there is a good balance between penetration ability and chemical reaction.

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Section: Introductionmentioning

confidence: 99%

Numerical study on damage effects of segmented reactive-core penetrator impacting double-layer steel targets

Yan

Jiang

Zhou

et al. 2023

J. Phys.: Conf. Ser.

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“…The reactive materials with Zr or Al as reaction elements release energy through exothermic reaction under highspeed impact and explosion loads [1][2][3][4][5][6][7][8][9][10]. The reaction conditions and energy release characteristics of the reactive materials have been extensively studied [11][12][13][14][15]. At first, researchers explored the energy release characteristics of the reactive materials under the impact of high pressure gas or propellant loading impact test.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of explosive effect of thermobaric explosive by metal reactive material

Jiao

Zhou

et al. 2023

Propellants Explo Pyrotec

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Reactive materials have mechanical properties comparable to metal materials and also have the reaction‐release energy characteristics of energetic materials. The calorific value of reactive materials is even higher than that of explosives. They can react under high pressure/high temperature and release a large amount of chemical energy. Therefore, reactive materials have a wide range of potential applications in aviation and national defense fields. This study examines the energy release characteristics of the metal reactive material casing (MRMC) under thermobaric explosives and compares them to traditional steel casing. The test specimens had the same casing‐charge mass ratio and size, with the only difference being the casing material: reactive material (with reactive elements Zr and Al) and AISI 1020 steel. The physical and chemical properties of the reactive materials were tested and analyzed using ICP‐MS, oxygen bomb calorimeter, and SHPB. Through explosion tests, the characteristic parameters of explosion fireball and ground shock wave overpressure were measured. And the reactive fragments recovered from the experiment were subjected to XRD testing. The results show that MRMC can significantly increase the diameter, duration, and temperature of the explosion fireball compared to steel casing data. The maximum fireball diameter of the MRMC specimen increased by 31.9 %, while the duration before attenuation increased by 47.3 %. MRMC can increase the area ratio of high‐temperature areas (greater than 1300 °C) in the fireball. MRMC increases the overall temperature of the fireball, not just in specific local areas. Additionally, MRMC significantly enhances far‐field shock waves. At a scaled distance of 2.54, the peak overpressure and positive impulse of the MRMC specimen were 50 % and 52 % higher than those of the steel specimen, respectively. This study provides new insights into the application, design, and energy release research of MRMC.

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Dynamic compression-shear ignition mechanism of Al/PTFE reactive materials

Geng,

Liu,

Ren

et al. 2024

Composite Structures

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Experimental research on damage characteristics of multi-spaced plates with long rods of steel and W-Zr reactive material at hypervelocity impact

Cited by 14 publications

References 20 publications

Numerical study on damage effects of segmented reactive-core penetrator impacting double-layer steel targets

Numerical study on damage effects of segmented reactive-core penetrator impacting double-layer steel targets

Enhancement of explosive effect of thermobaric explosive by metal reactive material

Dynamic compression-shear ignition mechanism of Al/PTFE reactive materials

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