Experimental investigation on ballistic resistance of polyurea coated steel plates subjected to fragment impact

Peng, Zhaohua; Wang, Zhijun; Zhao, Pu; Zhang, Lei; Jin, Xing-Qi; Xu, Yabei

doi:10.1016/j.tws.2019.106342

Cited by 59 publications

(23 citation statements)

References 33 publications

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“…In particular, it should be pointed out that the influence of static compression test and dynamic impact test on the deformation of PUE lies in the difference of strain rate. As a typical strain rate material, PUE will have a strain rate effect and glass transition effect under a high strain rate, which is not available in static compression tests [ 29 , 30 ]. Therefore, the static compression test is different from the dynamic impact test.…”

Section: Resultsmentioning

confidence: 99%

In Situ Grafted Composite Nanoparticles-Reinforced Polyurethane Elastomer Composites with Excellent Continuous Anti-Impact Performance

Zheng

Xiang

et al. 2021

Materials

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Polyurethane elastomer (PUE) has attracted much attention in impact energy absorption due to its impressive toughness and easy processability. However, the lack of continuous impact resistance limits its wider application. Here, an amino-siloxane (APTES) grafted WS2-coated MWCNTs (A-WS2@MWCNTs) filler was synthesized, and A-WS2@MWCNTs/PUE was prepared by using the filler. Mechanical tests and impact damage characterization of pure PUE and composite PUE were carried out systematically. Compared with pure PUE, the static compressive strength and dynamic yield stress of A-WS2@MWCNTs/PUE are increased by 144.2% and 331.7%, respectively. A-WS2@MWCNTs/PUE remains intact after 10 consecutive impacts, while the pure PUE appears serious damage after only a one-time impact. The improvement of mechanical properties of A-WS2@MWCNTs/PUE lies in the interfacial interaction and synergy of composite fillers. Microscopic morphology observation and damage analysis show that the composite nanofiller has suitable interfacial compatibility with the PUE matrix and can inhibit crack growth and expansion. Therefore, this experiment provides an experimental and theoretical basis for the preparation of PUE with excellent impact resistance, which will help PUE to be more widely used in the protection field.

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Section: Resultsmentioning

confidence: 99%

In Situ Grafted Composite Nanoparticles-Reinforced Polyurethane Elastomer Composites with Excellent Continuous Anti-Impact Performance

Zheng

Xiang

et al. 2021

Materials

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“…Layered or sandwich panels manufacturing is done to increase the ballistic resistance and decrease the density. The paper [9] reported that to increase the ballistic resistance of steel plates, polyurea coating needs to be done. The addition of polyuria on the front side of the target plate indicates better ballistic performance compared to steel plates with low hardness.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

An analysis of coil dimensions on induction heating machine against microstructure and hardness distribution as new candidate of projectile-resistant steel plates materials

Purwanto

Tauviqirrahman

Dzulfikar

et al. 2020

EEJET

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“…[3] HS and SS are both responsible for their enhanced modulus, high resiliency to withstand deformation, and high extensibility. [4] This unique elastomer has found interesting applications in military armor coatings, [5][6][7] concrete coatings, [8][9][10] bridge reinforcement, [11,12] and explosion-proof vehicles. [13] PU is classified into two types based on the structure of the diisocyanates used; aromatic and aliphatic.…”

Section: Introductionmentioning

confidence: 99%

New Insights into Segmental Packing, Chain Dynamics and Thermomechanical Performance of Aliphatic Polyurea Composites: Comparison between Silica Oxides and Titanium (III) Oxides

Palaniandy

Auckloo

Cavallaro

et al. 2021

Macro Materials & Eng

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Polyurea (PU) is intrinsically reinforced by its microphase-separated morphology, giving its excellent mechanical properties. In this study, it is shown how a high-index PU formulation applies easy diffusion of hard segments into the soft phase of the PU matrix and tune its chain mobility. Moreover, the interaction of micro (>100 nm), nano (<100 nm) fillers with the microdomains and their thermomechanical properties are unraveled. Herein, nanosilica oxide (NS) and micro titanium (III) oxide (Ti 2 O 3 ) are incorporated at low loadings into a solvent-free two-component aliphatic PU via insitu polymerization. While NS achieves an interfacial interaction with urea groups and forms a tight hard segmental packing, the large-sized Ti 2 O 3 assembles the interconnected PU chain network, improving its crystallinity. Strong reinforcement by NS is noticed when tensile strength increased from 26 to 31 MPa and on the maximum thermal degradation temperature by 21 °C increment from the neat PU. In contrast, the soft segmental dynamics are triggered with the presence of Ti 2 O 3 as indicated in the reduction in glass transition temperature and the 288% improvement in the storage modulus. This study provides an insightful perspective in designing robust PU composites, effective for myriad applications including strong and flexible films in circuit boards and photovoltaic (PV) cells.

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Experimental investigation on ballistic resistance of polyurea coated steel plates subjected to fragment impact

Cited by 59 publications

References 33 publications

In Situ Grafted Composite Nanoparticles-Reinforced Polyurethane Elastomer Composites with Excellent Continuous Anti-Impact Performance

In Situ Grafted Composite Nanoparticles-Reinforced Polyurethane Elastomer Composites with Excellent Continuous Anti-Impact Performance

An analysis of coil dimensions on induction heating machine against microstructure and hardness distribution as new candidate of projectile-resistant steel plates materials

New Insights into Segmental Packing, Chain Dynamics and Thermomechanical Performance of Aliphatic Polyurea Composites: Comparison between Silica Oxides and Titanium (III) Oxides

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