A combined experimental and numerical investigation on projectiles penetrating into water-filled container

Ren, Peng; Shi, Lu; Ye, Renchuan; Chai, Dongliang; Zhao, Wei; Wu, Jie; Zhang, Wei; Mu, Zhongcheng

doi:10.1016/j.tws.2019.106230

Cited by 19 publications

(5 citation statements)

References 25 publications

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“…The frames and resolution of the cameras are set as 50,000 frames per second and 512 × 512, respectively. Two high-intensity 1500 W lamps are employed during the test to guarantee the quality of the figures [34].…”

Section: Methodsmentioning

confidence: 99%

Dynamic failure of carbon fiber-reinforced plastics sandwich structures with polyvinyl chloride foam cores subjected to impact loading

Ren

Liu

Tao

et al. 2020

Jnl of Sandwich Structures & Materials

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The dynamic failure of carbon/epoxy sandwich plates with polyvinyl chloride foam core subjected to foam projectile impact is experimentally analyzed in this research. The effects of intensity of impact impulse, cores density, core thickness on the impact resistance of the composite sandwich plates in terms of deflection of rear sheets are also assessed. The 3D- digital image correlation technique is applied to measure the dynamic deformation of the sandwich plates. The results show that the carbon/epoxy sandwich plates exhibit more excellent impact resistance than aluminum sandwich plates with polyvinyl chloride cores at the similar area mass. The carbon/epoxy sandwich plates experience an obvious spring back, and only a slight plastic deflection can be observed after test. The failure modes of the sandwich plates include plastic deformation, fiber breakage, delamination, matrix crack, debonding, and compression of cores. The damage of plates become more serious with core density and core thickness decreasing, and impact impulse increasing, respectively.

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Section: Methodsmentioning

confidence: 99%

Dynamic failure of carbon fiber-reinforced plastics sandwich structures with polyvinyl chloride foam cores subjected to impact loading

Ren

Liu

Tao

et al. 2020

Jnl of Sandwich Structures & Materials

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“…where A , B , C , n and m are the yield stress parameter, hardening coefficient, strain rate coefficient, hardening index and temperature coefficient for material (Ren et al , 2019), respectively. ε eq and ε* eq were the effective strain and dimensionless effective plastic strain rate.…”

Section: Experimental Studymentioning

confidence: 99%

“…Meanwhile, the growth of cavity compressed water in the tank on the walls also generated the larger plastic deformation of rear wall than front wall, because the cavity generation were associated with the motion direction of fragment in fluid (Varas et al , 2009a). It was meant that the rear wall of storage tank suffered more loading from the HRAM (Varas et al , 2009a; Ren et al , 2019). The similar deformation of front and rear walls along two directions under 92.5 m/s fragment.…”

Section: Finite Element Simulationmentioning

confidence: 99%

“…Based on that, the results of Varas et al (2009aVaras et al ( , 2009b showed that the low filling levels decreased the global damage of the water-filled tube and increased a localization permanent deflection at the impact region of wall. Ren et al (2018aRen et al ( , 2019 summarized the typical failure modes of liquid-filled tank under three different shapes of projectiles impacting experimentally. The plastic deformation of walls in terms of kinetic energy and caliber-radius-head of fragment was presented.…”

Section: Introductionmentioning

confidence: 99%

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Effect of baffles on hydrodynamic ram and damage of storage tank under fragment impact

Tang

Liu

Zhao

et al. 2022

AEAT

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Purpose Fragment impact is one of the main threats for the safety of storage tank in aircraft. This study aims to investigate the influence of inserted baffle on hydrodynamic ram (HRAM) and damage of storage tank to optimize the protective performance of storage tank under fragment impact. Design/methodology/approach The characteristics of initial shock wave, cavity evolution, velocity attenuation of fragment and anti-penetration performance of baffle-inserted tanks were evaluated by experimental and numerical methods. Findings Results indicated that the inserted baffle in tank could significantly increase the velocity attenuation rate of fragment in water. The volume of the second cavity caused by the inserted baffle rapidly decreased with the baffle position moving backward. For the baffle-inserted tank, the deformation of the front and rear walls was substantially weakened, and the alleviating effect for front wall was more significant. Comparing with the ordinary storage tank, the inserted baffle at normalized position 0.25, 0.5 and 0.75 in tank made the ballistic limit velocity of storage tank increasing by 118.3%, 20.0% and 54.0%, respectively. Originality/value The findings of this work illustrating the HRAM history and damage map of storage tanks after inserted baffle could provide a convenient approach to improve the anti-penetration performance of storage tanks effectively.

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“…Liquid tanks are effective for protection against fragments and blast waves, and they have been the focus of protective structure research [15,16]. Ren et al [17] experimentally and numerically studied the penetration of a projectile in a water-filled container with aluminum target plates. Four types of typical failure modes for the plates in the water-filled container were identified through the results.…”

Section: Introductionmentioning

confidence: 99%

An Investigation of the Damage Mechanism of Multilayer Liquid-Containing Protective Structure under Combined Blast Wave and Fragment Loading

Fan,

Li,

Huang

et al. 2023

JMSE

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A multilayer liquid-containing protective structure is composed of a liquid tank, ceramic, a honeycomb sandwich and homogeneous steel. This structure has superior resistance to combined blast wave and fragment loading. Due to the relatively complicated construction of the structure, the inner damage, energy absorption and the protection characteristics of the multilayer liquid-containing protective structure need to be further studied. In this paper, a multilayer liquid-containing structural model is constructed, the dynamic response process of multilayer liquid-containing structure under combined blast wave and fragment loading is analyzed, and the damage and energy absorption characteristics of each layer structure are investigated. In addition, the effects of the charge mass and fragment form on the structural failure modes and energy absorption characteristics are discussed. The results indicate that different modes of damage occur in each layer structure. The front plate of the liquid tank sustains the most damage and absorbs the most energy, and the honeycomb sandwich absorbs the second most energy. The damage area of the front plate and the degree of compression collapse of the honeycomb sandwich increase with increasing charge mass. When the charge mass is small, the damage mode of the multilayer liquid-containing structure is greatly affected by fragments, and the damage effect of the blast wave increases with increasing charge mass. For a constant charge mass, the degree of damage to the protective structure is minimally impacted by the fragment weight, and the degree of damage can be substantially reduced by reducing the number of fragments.

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A combined experimental and numerical investigation on projectiles penetrating into water-filled container

Cited by 19 publications

References 25 publications

Dynamic failure of carbon fiber-reinforced plastics sandwich structures with polyvinyl chloride foam cores subjected to impact loading

Dynamic failure of carbon fiber-reinforced plastics sandwich structures with polyvinyl chloride foam cores subjected to impact loading

Effect of baffles on hydrodynamic ram and damage of storage tank under fragment impact

An Investigation of the Damage Mechanism of Multilayer Liquid-Containing Protective Structure under Combined Blast Wave and Fragment Loading

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