Resistant performance of perforation of multi-layered targets using an estimation procedure with marine application

Liang, Cho–Chung; Yang, Ming-Fang; Wu, P.-W.; Teng, Tso–Liang

doi:10.1016/j.oceaneng.2004.05.009

Cited by 28 publications

(14 citation statements)

References 29 publications

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“…The theoretical solutions indicate that a monolithic target has greater ballistic resistance than a multilayered shield of the same thickness. Liang et al [2005] proposed a simple theoretical model for the shear plugging process of multilayered shields.…”

Section: Introductionmentioning

confidence: 99%

Protection performance of double-layered metal shields against projectile impact

Teng

Dey

Børvik

et al. 2007

JOMMS

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This paper critically evaluates the protection performance of double-layered shields against projectile impact at the subordnance velocity using finite element methods. Four types of projectiles of different weight and nose shape are considered, representing various fragments generated from Improvised Explosive Devices (IEDs). It is found that the double-layer configuration is able to improve the ballistic resistance by 8.0%-25.0% for the flat-nose projectile, compared to the monolithic plate of the same weight. The upgrade is due to the transition of the failure mode from less energy dissipating shear plugging to more energy dissipating tensile tearing. Under impact by the conical-nose projectile, the double-layered target is almost as capable as the monolithic plate. The present research helps resolve the long outstanding issue of the protection effectiveness of the double-layer configuration.

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Section: Introductionmentioning

confidence: 99%

Protection performance of double-layered metal shields against projectile impact

Teng

Dey

Børvik

et al. 2007

JOMMS

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“…It was revealed that layering significantly weakened thin and intermediate thickness targets. Liang et al [9] conducted studies of the resistance performance of multi-layered structures based on three conservation laws. They validated their results with the experimental data from Almohandes et al [3].…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation on ballistic resistance of aluminium multi-layered panels impacted by improvised projectiles

2017

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This paper presents a numerical study of perforation of the aluminium multi-layered targets impacted by steel projectiles in the shape of a ball, nut and nail. For the construction of the protective panels arc-, rectangular-, V-and U-shaped sheets of metal were considered. During the tests the panel thickness was constant at 160 mm. The panels were composed of 1.5-mm-thick aluminium sheets, and the initial speed of debris was 500 m/s. A comprehensive numerical study indicated the shape of the layer that had superior ballistic resistance and the best strength-to-weight ratio. Computational analyses were also used to investigate the influence of thermal softening and strain rate hardening in the Johnson-Cook constitutive model on the ballistic performance of layered targets. The number of layers required to stop the penetrating objects was compared for the rigid and deformable projectiles. Based on the comparative studies, some guidelines for engineering tasks involving exploration of number of possible technical solutions were proposed.

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“…Liang et al [14] developed an analytical model for prdicting the ballistic performance of multi-layered targets, based on the concepts of momentum conservation, impulse-momentum equation and energy balance. Experimental measurements of Almohandes et al [8] were used to validate the predictions of their model.…”

Section: Introductionmentioning

confidence: 99%

Penetration of a Small Caliber Projectile into Single and Multi-layered Targets

Abdel-Wahed

Salem

Zidan

et al. 2010

EPJ Web of Conferences

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The normal penetration of armor-piercing projectiles into single and multi-layered steel plates has been investigated. An experimental program has been conducted to study the effect of spaced and in-contact layered targets on their ballistic resistance. Armor piercing projectiles with caliber of 7.62 mm were fired against a series of single and multi-layered steel targets. The projectile impact velocities were ranged from 300-600 m/s, whereas the total thicknesses of the tested single, spaced and in-contact layered steel targets were 3 mm. The penetration process of different tested target configurations has been simulated using Autodayn-2D hydrocode.The experimental measurements of the present work were used to discuss the effect of impact velocity, target configurations and number of layers of different spaced and in-contact layered steel targets on their ballistic resistance. In addition, the post-firing examination of the tested targets over the used impact velocity range showed that the single and each layer of spaced and in-contact laminated steel targets were failed by petalling. Finally, the obtained experimental measurements were compared with the corresponding numerical results of Autodyn-2D hydrocode, good agreement was generally obtained.

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Resistant performance of perforation of multi-layered targets using an estimation procedure with marine application

Cited by 28 publications

References 29 publications

Protection performance of double-layered metal shields against projectile impact

Protection performance of double-layered metal shields against projectile impact

Numerical investigation on ballistic resistance of aluminium multi-layered panels impacted by improvised projectiles

Penetration of a Small Caliber Projectile into Single and Multi-layered Targets

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