Experimental study on the protective performance of bulletproof plate and padding materials under ballistic impact

Chang, Lijun; Guo, Yang; Huang, Xingyuan; Xia, Yunxia; Cai, Zhihua

doi:10.1016/j.matdes.2021.109841

Cited by 27 publications

(12 citation statements)

References 33 publications

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“…By comparison with helmets, bulletproof plates are more convenient for observing the dynamic response, avoiding penetrating damage to the head model, allowing the model to be reused, and reasonably controlling the costs of experiments. Conjunctival-fibrious polyurethane elastic material is used to create the skin of the head, high phosphorus and high calcium thermosetting resin is used to create the skull, and gelatin is used to make the brain tissue 26 . Firstly, drill holes on the skull of model to fix and install the acceleration sensors (KD1000D, KD1001A, KeDong Electronic Inc.) and pressure sensors (KD2004G02X, KeDong Electronic Inc.) inside model with the sensitive surface facing impact direction.…”

Section: Methodsmentioning

confidence: 99%

Study on protective performance and gradient optimization of helmet foam liner under bullet impact

Huang

Zheng

Chang

et al. 2022

Sci Rep

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Protective equipment in war plays a vital role in the safety of soldiers, the threat to soldiers from brain damage caused by deformation at the back of the helmet cannot be ignored, so research on reduce blunt post-cranial injury has great significance and value. This study first conducted gunshot experiments, used rifle bullets impact bulletproof plate and different density liner foam to record the incident process and internal response of craniocerebral model. After verifying the accuracy of finite element model through experimental data, optimization model is established based on response surface method to optimize the structure of gradient foam, analyze the cranial strain and energy absorption to select the best density and thickness distribution of each foam layer. Optimization results show that liner foam which designed to have lower density and thicker thickness for impact and brace layers, higher density and thinner thickness for middle layer can significantly improve the energy absorption efficiency. Compared to the 40.65 J of energy absorption before optimization, the optimized gradient foam can absorb 109.3 J of energy, with a 169% increase in the absorption ratio. The skull strain in the craniocerebral model was reduced from 1.260 × 10–2 to 1.034 × 10–2, with a reduction of about 22%. This study provides references for the design and development of protective equipment and plays an important role in ensuring the safety of soldiers in the battlefield environment.

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Section: Methodsmentioning

confidence: 99%

Study on protective performance and gradient optimization of helmet foam liner under bullet impact

Huang

Zheng

Chang

et al. 2022

Sci Rep

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“…The bulletproof material with laminated structures have been widely investigated, generally using the materials with ultrahigh tensile strength such as aramid fabric, [39] ultrahigh molecular weight polyethylene (UHMWPE), [40] and glass/polymer. [41] The design of bulletproof materials requires not only energy absorption to dissipate the kinetic energy of bullet, but also hardness to reduce the deformation effect that may cause the damage to the human body.…”

Section: Durability Test and Ballistic Impact Experimentsmentioning

confidence: 99%

Highly Tough and Reliable Poly(Amic Acid) with Ballistic Impact‐Resistance through Modulation of Hydrogen Bonding Interactions

Zhang

Ling

Yan

et al. 2023

Macromol. Rapid Commun.

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Poly(amic acid) (PAA) materials as the precursor of polyimide generally show remarkably poor mechanical properties, thus limiting their application as the engineering plastics. In this study, it is demonstrated that the mechanical properties of PAA materials can be improved significantly for tens of folds with breaking strength >50 MPa, Young's modulus >400 MPa, and elongation at break >300% by incorporation of 20% (mol%) poly(propylene glycol) (PPO) soft segments. The optimization for suitable hard–soft composition with 20% PPO and the existence of various hydrogen bonds with different binding energies can dissipate energies efficiently, which simultaneously improve the material strength and toughness. In addition, PAA82 films exhibit excellent tolerance toward cyclic stretch, and have the capability to resist various harsh conditions including solar radiation testing (1 sun), heat (85 °C), alkalinity (pH 10), and acidity (pH 4) over one month. Noted that PAA82 films can be laminated with Kapton films, which show excellent resistance to ultrahigh (200 °C) and ultralow temperature (−196 °C). The laminated film also exhibits bulletproof property with a thickness of 6 mm. The strategy via modulation of hard–soft compositions and hydrogen bonds in PAA materials shows great potentials to improve the mechanical properties of polymeric materials.

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“…and ultra-high molecular weight polyethylene (Spectra ® , Dyneema ® , etc.). [1][2][3][4][5][6][7][8][9] Bulletproof fabrics made of high-performance fibers have excellent resistance to elasticity. However, although bulletproof fabrics made of highperformance fibers have excellent ballistic resistance, due to the lack of friction among the yarns of neat fabrics, bullets will penetrate from among the yarns, resulting in high-performance fibers that cannot give full play to the ballistic resistance.…”

Section: Introductionmentioning

confidence: 99%

“…and ultra‐high molecular weight polyethylene (Spectra®, Dyneema®, etc.) 1–9 . Bulletproof fabrics made of high‐performance fibers have excellent resistance to elasticity.…”

Section: Introductionmentioning

confidence: 99%

Study on the enhancement mechanism of ballistic properties of shear thickening fluid impregnated aramid fabric composite plates

Zhang,

Chang,

et al. 2024

Polymer Composites

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This study proposes a process for the preparation of composite laminates using the shear thickening fluid (STF) impregnated aramid fabric and presents some fabric panel configuration strategies. Firstly, this study prepared two kinds of STF using 20 nm and 500 nm silica particles. Then, the STF‐impregnated Kevlar fabrics were laminated and hot‐pressed to form the fabric panels. After that, the ballistic performance of the fabric panels was evaluated by firing the 9 mm steel core projectile using a gas gun. The ballistic tests showed that the ballistic performance of the hybridized configuration panels using STF‐20 treated fabrics as the front panels and STF‐500 treated fabrics as the backing panels was superior, with a reduction of 36.1%–37.6% in the number of perforated layers (4.7–5 layers) compared to a single STF‐treated panel. This study provides a new idea and method for applying STF in protective equipment.Highlights Shear thickening fluid (STF) and aramid fabric are better combined by hot pressing lamination process; The ballistic properties of fabric panels are significantly improved by hybrid configuration; The ballistic performance enhancement mechanism of composite bulletproof plate was revealed.

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Experimental study on the protective performance of bulletproof plate and padding materials under ballistic impact

Cited by 27 publications

References 33 publications

Study on protective performance and gradient optimization of helmet foam liner under bullet impact

Study on protective performance and gradient optimization of helmet foam liner under bullet impact

Highly Tough and Reliable Poly(Amic Acid) with Ballistic Impact‐Resistance through Modulation of Hydrogen Bonding Interactions

Study on the enhancement mechanism of ballistic properties of shear thickening fluid impregnated aramid fabric composite plates

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