Effects of Liquid Parameters on Liquid-Filled Compartment Structure Defense Against Metal Jet

Zu, Xudong; Wei, Daixiu; Huang, Zhengxiang; Yin, Xiaochun

doi:10.3390/ma12111809

Cited by 9 publications

(4 citation statements)

References 17 publications

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“…The literature [8][9][10][11][12][13][14][15][16][17] had proved the anti-penetration performance of the LC4 aluminum alloy-diesel closed structure. The materials and the geometric dimensions of the structure were used by referring to them.…”

Section: Design Of Structurementioning

confidence: 99%

“…Guo et al [16] studied the anti-jet penetration performance of transverse multicell structure filled with liquid, and some theoretical and experimental results were obtained. Zu et al [17] studied the anti-jet penetration performance of the transverse multi-cell structure filled with liquid using experimental methods, especially discussed the influence of the filled liquid properties (such as dynamic viscosity, density and sound velocity) on the the jet. It was pointed out that the radial convergence effect of liquid greatly interfered with the residual penetration capability of the jet.…”

Section: Introductionmentioning

confidence: 99%

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Investigation on the jet penetrated metal-diesel closed structures in condition of single-layer and multi-layer

Zhao

Zhang²,

Zhao³

2022

JMES

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For improving the protective performance of Armor, a multi-layer metal-diesel closed structure (MLMDCS) was proposed. The concept of equivalent layer number n and specific residual head velocity (SRHV) for describing the anti-jet penetration performance of single-layer metal-diesel closed structure (SLMDCS) and MLMDCS was put forward. The finite element simulation method by experimental verification was used to simulate the shaped charge jet (SCJ) penetrates the MLMDCS and SLMDCS. The simulation results show that when the equivalent layer number n (n>1) is the same, the residual head velocity of the jet through the MLMDCS is lower than that of the SLMDCS, and the time is longer than that of the SLMDCS. The energy consumption of jet in MLMDCS is more than that of in SLMDCS. The jet head becomes blunt after penetrating out the MLMDCS, but the head shape remains basically unchanged after the jet penetrates out the SLMDCS. The velocity streamline of diesel at the intersection of each layer in the MLMDCS is disordered, which forms local turbulence and disjoint phenomenon. The distribution positions of the diesel velocity streamline and pressure in the SLMDCS are basically the same. Compared with the SLMDCS, the MLMDCS has better anti-jet penetration properties, and the anti-jet penetration properties of the MLMDCS are better with the increase in the equivalent layer number. The research results provide a design reference for the new generation protective armor.

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Section: Design Of Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation on the jet penetrated metal-diesel closed structures in condition of single-layer and multi-layer

Zhao

Zhang²,

Zhao³

2022

JMES

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show abstract

“…Research on liquid armor is relatively scarce. The current visible research contents are embodied in liquid properties [9], penetration theory [10] and structure type [11]. Even if there is some literature on the closed structure filled liquid, there are still shortcomings in the research.…”

Section: Introductionmentioning

confidence: 99%

“…For example, the anti-jet penetration capability of the circular metal closed structure filled diesel was studied in literature [10], but the combustion and explosion behavior of diesel after jet penetration were not discussed. The propagation and reflection behavior of shock wave after jet penetrated into liquid were not considered in literature [8] and [9]. The literature [11] did not use the jet penetration behavior to design the closed structures.…”

Section: Introductionmentioning

confidence: 99%

Investigation on anti-penetration capability of water filled aluminum alloy cell structure to the shaped charge jet

Zhao¹,

Zhang²

2022

Funct. Compos. Struct.

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Passive protective armor is reliable and cheap, and is favored by many armored weapons and equipment. However, reports on metal-liquid composite armor are not sufficient and systematic. Based on the shaped charge jet (SCJ), the anti-penetration capabilities of water filled aluminum alloy cell structure were studied. The hourglass cell structure (HCS) was designed according to the shock wave propagation characteristics in liquid, and the expansion-convergence cell structure (E-CCS) was derived. Based on the virtual origin theory, the residual tip velocity of jet after SCJ penetrated the cell structure was calculated. According to the theory of supersonic disturbance propagation, the Mach cone half angle of SCJ shock wave propagation in liquid was defined and corrected. The propagation and reflection behavior of shock wave were discussed to analysis the radial convergence of liquid. Via the Van Leer Arbitrary Lagrangian Euler finite element simulation model verified by experiments, the simulation studies of SCJ penetrated the circular cell structure (CCS), HCS, E-CCS and convergence/expansion multi-cell structure were performed. The results show that HCS has better effect of interfering with SCJ than that of CCS and E-CCS. An important discovery is that when the liquid composite multi-cell structure is penetrated by SCJ, the attacked cell will not affect other cells due to the shock wave has been trapped in a single cell.

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Formation characteristics and penetration performance of an underwater shaped charge jet

Wang

Li³

et al. 2022

Ocean Engineering

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Effects of Liquid Parameters on Liquid-Filled Compartment Structure Defense Against Metal Jet

Cited by 9 publications

References 17 publications

Investigation on the jet penetrated metal-diesel closed structures in condition of single-layer and multi-layer

Investigation on the jet penetrated metal-diesel closed structures in condition of single-layer and multi-layer

Investigation on anti-penetration capability of water filled aluminum alloy cell structure to the shaped charge jet

Formation characteristics and penetration performance of an underwater shaped charge jet

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