Effects of the adhesive layer on the multi-hit ballistic performance of ceramic/metal composite armors

Shen, Yonghua; Wang, Yangwei; Du, Shanyi; Yang, Zhikun; Cheng, Hongbo; Wang, Fuchi

doi:10.1016/j.jmrt.2021.05.058

Cited by 29 publications

(12 citation statements)

References 46 publications

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“…The applied thickness was around 0.2 mm, and the sandwich panel was kept at room temperature for 24 h. The used adhesive with the applied thickness was assumed to distribute the impact energy in a broader surface of the aluminium foam, which increases the energy absorption capability of the sandwich panel by increasing the zone of plastic deformation of the core. Shen et al 49 stated that the adhesive layer should transmit the stress wave to the baking component as rapidly as possible. They found that with the increase of adhesive layer thickness, the time of the face sheet unsupported by the baking component becomes longer, making the ballistic performance of the face sheet poor.…”

Section: Sandwich Panel Constructionmentioning

confidence: 99%

“…This adhesive offers a higher bonding strength than polyurethane adhesives. The adhesive thickness was selected based on previous studies conducted by the authors and other references, [48][49][50][51] which guaranteed an excellent bonding during impact tests. The applied thickness was around 0.2 mm, and the sandwich panel was kept at room temperature for 24 h. The used adhesive with the applied thickness was assumed to distribute the impact energy in a broader surface of the aluminium foam, which increases the energy absorption capability of the sandwich panel by increasing the zone of plastic deformation of the core.…”

Section: Sandwich Panel Constructionmentioning

confidence: 99%

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Experimental investigation on the perforation behaviour of sandwich panels with hybrid composite face sheets and cellular aluminium core using quasi-static and instrumented inverse impact methods

Derbala

Tria

Gilson

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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With the rising demand for lightweight and high-performance shielding systems, sandwich panels made of thin rigid face sheets and cellular material cores have recently received much attention. The present study aims to investigate the perforation behaviour of lightweight sandwich panels made of fibre reinforced composite face sheets and aluminium foam core under quasi-static and dynamic testing conditions. A particular focus is made on the fibre hybridization effect on the overall panel behaviour. Impact perforation tests were conducted using an inverse perforation technique. Instead of conventional free-flying projectile impact tests, studied samples are fixed in a hollow projectile. Then, this assembly is accelerated toward an instrumented steel perforator replacing the incident bar of a split Hopkinson pressure bar. Consequently, this modified split Hopkinson pressure bar system can be used as both a perforator and a measuring device. Therefore, the piercing force-displacement curves, the energy absorption capability as well as the penetration and damage mechanisms of the tested panels was analysed and compared to quasi-static perforating tests. To better assess the testing results, quasi-static tensile and bending tests were carried out on the face sheets materials. Moreover, quasi-static and dynamic compression tests were performed on the aluminium foam core using conventional test methods and direct split Hopkinson pressure bar. Unlike the aluminium alloy face sheets, the experimental findings revealed that the sandwich panels with composite face sheets demonstrated higher rate sensitivity, better perforation resistance and specific energy absorption capability. Results have also shown that the hybridization of carbon and glass fabrics combined their best tension and bending properties as well as their higher dynamic strength, which has increased the sandwich panel's perforation resistance.

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Section: Sandwich Panel Constructionmentioning

confidence: 99%

Section: Sandwich Panel Constructionmentioning

confidence: 99%

Experimental investigation on the perforation behaviour of sandwich panels with hybrid composite face sheets and cellular aluminium core using quasi-static and instrumented inverse impact methods

Derbala

Tria

Gilson

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…To better explore the effect of the projectile nose shape on the ballistic response of the laminate, the ANSYS/LS-DYNA software was used to simulate the nonlinear high strain rate impact process. In this study, the Johnson-Cook (J-C) material model was used to describe the projectile and the steel frame [33,34]. The Mat-Composite-Damage (MCD) material model based on Chang-Chang damage criterion was adopted to describe the orthogonal anisotropic UHMWPE composite [35].…”

Section: Numerical Simulationsmentioning

confidence: 99%

Experimental and Numerical Investigation of the Effect of Projectile Nose Shape on the Deformation and Energy Dissipation Mechanisms of the Ultra-High Molecular Weight Polyethylene (UHMWPE) Composite

et al. 2021

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The effect of projectile nose shape on the ballistic performance of the ultra-high molecular weight polyethylene (UHMWPE) composite was studied through experiments and simulations. Eight projectiles such as conical, flat, hemispherical, and ogival nose projectiles were used in this study. The deformation process, failure mechanisms, and the specific energy absorption (SEA) ability were systematically investigated for analyzing the ballistic responses on the projectile and the UHMWPE composite. The results showed that the projectile nose shape could invoke different penetration mechanisms on the composite. The sharper nose projectile tended to shear through the laminate, causing localized damage zone on the composite. For the blunt nose projectile penetration, the primary deformation features were the combination of shear plugging, tensile deformation, and large area delamination. The maximum value of specific energy absorption (SEA) was 290 J/(kg/m2) for the flat nose projectile penetration, about 3.8 times higher than that for the 30° conical nose projectile. Furthermore, a ballistic resistance analytical model was built based on the cavity expansion theory to predict the energy absorption ability of the UHMWPE composite. The model exhibited a good match between the ballistic resistance curves in simulations with the SEA ability of the UHMWPE composite in experiments.

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Section: Introductionmentioning

confidence: 99%

“…16,17 On the other hand, under multiple ballistic impacts from standardized bullets, ceramic composite armors with polyurethane resin adhesive employed for interfacial bonding exhibited less adhesive layer failure and ceramic debonding than those bonded using epoxy. 18,19 In addition to fiber-reinforced composite laminates, the multi-hit ballistic performance of ceramic/metal bi-layer mosaic armors was evaluated in terms of probability of protection. 20 The present authors used a combined experimental and numerical approach to investigate the ballistic behaviors of ceramic/metal bi-layer mosaic armors as well as metallic honeycomb enhanced mosaic armors.…”

Section: Introductionmentioning

confidence: 99%

Multiple ballistic impacts of thin metallic plates: Numerical simulation

Qiang

Zhang

Zhao

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The ballistic performance of protective structures under multiple projectile impacts attracts increasing attention due to its practical importance, and existing studies were seldomly devoted to exploring how the structure would deform and fail when subjected to such loads. This study aimed to characterize the multi-hit ballistic resistance of fully-clamped thin plates made of 304 stainless steel using finite element method, with the equivalent plastic strain employed to define material damage and failure/fracture. The numerical model was validated against existing experimental results of double impacts at the same location, with good agreement achieved. The model was subsequently employed to quantify the effects of impact position, interval time between successive hits, projectile nose shape (e.g., spherical, flat and conical), and boundary condition of target plate on ballistic limit and deformation/failure modes. Further, ballistic limit boundaries were constructed for both double and triple impacts of projectiles. Obtained results are helpful for designing high-performance protective structures against multiple projectile impacts.

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Effects of the adhesive layer on the multi-hit ballistic performance of ceramic/metal composite armors

Cited by 29 publications

References 46 publications

Experimental investigation on the perforation behaviour of sandwich panels with hybrid composite face sheets and cellular aluminium core using quasi-static and instrumented inverse impact methods

Experimental investigation on the perforation behaviour of sandwich panels with hybrid composite face sheets and cellular aluminium core using quasi-static and instrumented inverse impact methods

Experimental and Numerical Investigation of the Effect of Projectile Nose Shape on the Deformation and Energy Dissipation Mechanisms of the Ultra-High Molecular Weight Polyethylene (UHMWPE) Composite

Multiple ballistic impacts of thin metallic plates: Numerical simulation

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