A numerical investigation into the influence of layer space on panel ballistic performance

Zhou, Yi; Gong, Xiaozhou; Zhang, Shangyong; Xu, Anchang

doi:10.1007/s12221-015-5662-6

Cited by 9 publications

(3 citation statements)

References 16 publications

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“…Cunniff [6] reported that material near the striking face has little influence on ballistic performance of an armour panel when the impact velocity is much higher than the ballistic limit. Chen [5] [9] explained that the front layers of fabric in a multilayer panel are more likely to be broken in shear, and the back layers of fabric tend to fail in tension. As a result, energy absorption of each layer is increased from front to back in the panel.…”

Section: Introductionmentioning

confidence: 99%

Investigation on energy absorption efficiency of each layer in ballistic armour panel for applications in hybrid design

Yang

Chen

2017

Composite Structures

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This study aims to reveal different energy absorption efficiency of each layer when armour panel is under ballistic impact. Through Finite Element (FE) modelling and ballistic tests, it is found that when fabrics are layered up in a panel, energy absorption efficiency is only 30%-60% of an individual fabric layer with free boundary condition. In addition, fabric layers in front, middle, and back exhibit different ballistic characteristics. Therefore, a new hybrid design principle has been proposed. A multilayer panel can be divided into three groups. Two hybrid panels that are combined different Twaron fabrics and Dyneema UD laminates are designed. Ballistic tests results show that for a given areal density of the panel, BFS behind the hybrid panel decreases 31.54% than that of the woven fabric panel. When the areal density of armour panel is reduced, the hybrid panel is more likely to stop the projectile. These findings provide a guide for hybrid design of ballistic armour panel.

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Section: Introductionmentioning

confidence: 99%

Investigation on energy absorption efficiency of each layer in ballistic armour panel for applications in hybrid design

Yang

Chen

2017

Composite Structures

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“…They determined that aramid has lower ultimate strain and higher value of hardness than UHMWPE. Thus, the behavior of UHMWPE composites under high velocity impact have received considerable attention in scientific literature [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Use of Artificial Neural Networks to Optimize Stacking Sequence in UHMWPE Protections

Peinado

Jiao-Wang

Olmedo³

et al. 2021

Polymers

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The aim of the present work is to provide a methodology to evaluate the influence of stacking sequence on the ballistic performance of ultra-high molecular weight polyethylene (UHMWPE) protections. The proposed methodology is based on the combination of experimental tests, numerical modelling, and Artificial Neural Networks (ANN). High-velocity impact experimental tests were conducted to validate the numerical model. The validated Finite Element Method (FEM) model was used to provide data to train and to validate the ANN. Finally, the ANN was used to find the best stacking sequence combining layers of three UHMWPE materials with different qualities. The results showed that the three UHMWPE materials can be properly combined to provide a solution with a better ballistic performance than using only the material with highest quality. These results imply that costs can be reduced increasing the ballistic limit of the UHMWPE protections. When the weight ratios of the three materials remain constant, the optimal results occur when the highest-performance material is placed in the back face. Furthermore, ANN simulation showed that the optimal results occur when the weight ratio of the highest-performance material is 79.2%.

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“…Multiple layers also afford a method of mitigating ballistic impact through management of the shock wave (e.g., deflection and spreading) [26,27,28]. For these reasons, the stacking sequence can exert a significant influence on performance [29,30,31,32].…”

Section: Introductionmentioning

confidence: 99%

Elastomer-metal laminate armor

et al. 2016

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• Polymer-aluminum laminates on the strike-face of steel plates enhance ballistic performance.• With judicious selection of substrate and laminate, a broad range of performance and weight combinations can be obtained.• There is both a reduction in magnitude of the substrate deformation and spatial dispersion of the impact.• The main function of the metallic layers is to stiffen the polymer without affecting the latter's viscoelasticity response. A study was carried out of pressure wave transmission and the ballistic penetration of steel substrates incorporating a front-face laminate, the latter consisting of alternating layers of thin metal and a soft polymer; the latter undergoes a viscoelastic phase transition on impact. The ballistic properties of laminate/steel structures are substantially better than conventional military armor. This enhanced performance has three origins: large energy absorption by the viscoelastic polymer, a significant strain-hardening of the material, and lateral spreading of the impact force. These mechanisms, active only at high strain rates, depend on the chemical structure of the polymer but not on the particular metal used in the laminate. G R A P H I C A L A B S T R A C T a b s t r a c t a r t i c l e i n f oPublished by Elsevier Ltd.

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A numerical investigation into the influence of layer space on panel ballistic performance

Cited by 9 publications

References 16 publications

Investigation on energy absorption efficiency of each layer in ballistic armour panel for applications in hybrid design

Investigation on energy absorption efficiency of each layer in ballistic armour panel for applications in hybrid design

Use of Artificial Neural Networks to Optimize Stacking Sequence in UHMWPE Protections

Elastomer-metal laminate armor

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