Experimental investigation on anti-penetration performance of polyurea-coated ASTM1045 steel plate subjected to projectile impact

Sun, Yuxiang; Wang, Xin; Ji, Chong; Zhao, Changxiao; Liu, Peili; Meng, Lei; Zhang, Kun; Jiang, Tao

doi:10.1016/j.dt.2020.08.005

Cited by 38 publications

(19 citation statements)

References 17 publications

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“…Due to the fact that these materials achieve the two-fold requirement, of low density and high strength, an important number of studies on epoxy-, vinyl esters-, phenolic resins-, polyesters-, polyureas-and urethanes-based materials for employment in ballistic protection field were performed [15][16]. The rationale of the present study was to focus on continuing previous tests of the research team [10][11], in correlation with state-of-theart findings regarding the dynamic behavior of polyurea [17][18].…”

Section: Resultsmentioning

confidence: 99%

Dynamic Tests on Polyurea-Based Hybrid Composites for Ballistic Protection

Petre¹,

Zecheru²,

Ginghină³

2021

Mater. Plast.

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Due to its chemical and mechanical properties, polyurea gains more and more interest in military applications. In this study, polyurea and carbon nanotubes were processed as coating polymer composites for ballistic plates and/or packages, in order to increase their protection potential, meanwhile maintaining an appropriate weight and an economic accessibility. In this respect, the composite material was layered on various commercially-available materials and various thicknesses and further, the performances of the products obtained were tested in order to assess their behavior against traumas produced by shockwave, blunt, shooting and fragment.

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Section: Resultsmentioning

confidence: 99%

Dynamic Tests on Polyurea-Based Hybrid Composites for Ballistic Protection

Petre¹,

Zecheru²,

Ginghină³

2021

Mater. Plast.

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“…Polyurea has attracted considerable attention in the fields of protection, ballistic proof, and blast , owing to its high strength, high toughness, and strain-rate-dependent behavior properties, − which are profoundly affected by their structures . Designing supramolecular polymer networks is an approach to fabricating a protective polyurea material with excellent mechanical properties and various functions, − such as self-healing − and shape memorability .…”

Section: Introductionmentioning

confidence: 99%

Room-Temperature Self-Healing Polyurea with High Puncture and Impact Resistances

Zhang

Cheng

et al. 2023

Chem. Mater.

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Polyureas are widely used as protective materials because they have good mechanical strength, toughness, and strainrate-dependent behavior. However, the fast reaction between −NCO and the −NH 2 component results in gelation in seconds, limiting their performance regulation and applications. In this study, we report a novel strategy to fabricate one-component polyurea with room-temperature self-healing, puncture resistance, and impact resistance. First, a latent curing agent was synthesized via the Schiff base reaction of an aliphatic diamine with isobutyraldehyde. Then, they were mixed directly with isocyanate. Such a mixture was uncured in storage without moisture, but it was cured once in contact with moisture in the application. So, it was called one-component polyurea. The polyurea exhibits roomtemperature self-healing properties with a healing efficiency of up to 98%. It has puncture displacement as high as 15.1 cm by sharp objects. The polyurea also exhibits excellent impact resistance and dissipative energy capacity because it possesses strain-ratedependent behavior. The polyurea can be integrated into Kevlar fabrics to form a flexible puncture-resistant composite and combined with carbon nanotubes to form flexible and wearable strain sensors. It is expected to find applications in intelligent soft materials, soft body armor, wearable flexible sensors, and other fields.

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“…A ceramic armor containing novel materials needs to be tested to offset the above deficiencies. Recently, polyurea has received extensive attention for its excellent performance in impact mitigation, due to its excellent mechanical properties [ 25 , 26 , 27 , 28 , 29 ]. The dynamic response of polyurea during impact exhibits strong rate-dependency [ 30 , 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

“…It seems that the polyurea layer may achieve a compromise between ballistic-protection resistance and durability in ceramic composite armor by appropriately combining its viscoelastic and volumetric compressibility characteristics [ 34 ]. In addition, the coating position of polyurea is crucial, and its effect seems disparate among diverse substrates and different types of polyurea [ 25 ]. It is now well established by various studies that the polyurea layer can provide considerable protection for metal and concrete substrates [ 26 , 27 , 29 , 35 , 36 ].…”

Section: Introductionmentioning

confidence: 99%

Ballistic Performance of Polyurea-Reinforced Ceramic/Metal Armor Subjected to Projectile Impact

et al. 2022

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Although polyurea has attracted extensive attention in impact mitigation due to its protective characteristics during intensive loading, the ballistic performance of polyurea-reinforced ceramic/metal armor remains unclear. In the present study, polyurea-reinforced ceramic/metal armor with different structures was designed, including three types of coating positions of the polyurea. The ballistic tests were conducted with a ballistic gun; the samples were subjected to a tungsten projectile formed into a cylinder 8 mm in diameter and 30 mm in length, and the deformation process of the tested targets was recorded with a high-speed camera. The ballistic performance of the polyurea-reinforced ceramic/metal armor was evaluated according to mass efficiency. The damaged targets were investigated in order to determine the failure patterns and the mechanisms of interaction between the projectile and the target. A scanning electron microscope (SEM) was used to observe the microstructure of polyurea and to understand its failure mechanisms. The results showed that the mass efficiency of the polyurea-coated armor was 89% higher than that of ceramic/metal armor, which implies that polyurea-coated ceramic armor achieved higher ballistic performance with lighter mass quality than that of ceramic/metal armor. The improvement of ballistic performance was due to the energy absorbed by polyurea during glass transition. These results are promising regarding further applications of polyurea-reinforced ceramic/metal armor.

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Experimental investigation on anti-penetration performance of polyurea-coated ASTM1045 steel plate subjected to projectile impact

Cited by 38 publications

References 17 publications

Dynamic Tests on Polyurea-Based Hybrid Composites for Ballistic Protection

Dynamic Tests on Polyurea-Based Hybrid Composites for Ballistic Protection

Room-Temperature Self-Healing Polyurea with High Puncture and Impact Resistances

Ballistic Performance of Polyurea-Reinforced Ceramic/Metal Armor Subjected to Projectile Impact

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