High- and low-velocity impact experiments on treated STF/3D glass fabrics

Hasan-nezhad, Hosein; Yazdani, Mojtaba; Jeddi, M.

doi:10.1016/j.tws.2021.108720

Cited by 31 publications

(19 citation statements)

References 45 publications

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“…The failure mechanism of STF‐impregnated composites in 3D woven spacer reinforcements remained unchanged. In the experiments of Hasan‐nezhadet al, 67 the cushioning properties and impact absorption of STF‐treated reinforcements were substantially improved. The authors concluded that the STF impregnated into the fabric during the drop hammer impact produced a shear‐thickening effect under the impact load, which substantially increased the compressive stiffness of the composites.…”

Section: Impact Failure Mechanism Of 3d Structure‐reinforced Flexible...mentioning

confidence: 94%

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Structural design and impact resistance of three‐dimensional structure‐reinforced flexible polymer composites

Zhang

Yan

et al. 2022

Polymers for Advanced Techs

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Three‐dimensional (3D) structure‐reinforced flexible polymer composites have great potential as personal protective materials. These composites exhibit excellent mechanical properties and failure mechanisms than typical rigid composites because of the complex dynamic reaction processes caused by the 3D structure in response to impact. This paper comprehensively reviews the impact resistance mechanism of 3D structure‐reinforced flexible polymer composites by combining current results with relevant investigations. 3D woven fabric reinforcements and flexible matrix materials of flexible polymer composites systems are presented in this paper. The classification for 3D woven fabric reinforcements is reviewed, as well as the effect of reinforcement structures on the impact resistance of the flexible composites. Furthermore, several flexible matrix are introduced. Several external factors affecting the impact resistance of composites are then discussed. Finally, the impact damage mechanism of 3D structure‐reinforced flexible polymer composites is summarized and analyzed.

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Section: Impact Failure Mechanism Of 3d Structure‐reinforced Flexible...mentioning

confidence: 94%

“…ST60/fabric composite back‐face view of the projectile impact point, v. Neat fabric with a projectile velocity of 117 m/s, and vi. ST60/fabric composite 67 ; (B) Back‐face and front‐face deformation in the quasi‐static puncture test, i. and ii. Neat fabric, iii.…”

Section: Impact Failure Mechanism Of 3d Structure‐reinforced Flexible...mentioning

confidence: 99%

Structural design and impact resistance of three‐dimensional structure‐reinforced flexible polymer composites

Zhang

Yan

et al. 2022

Polymers for Advanced Techs

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“…From the perspective of the panels, Mishra et al [ 81 ], Tang et al [ 18 ], Zhang et al [ 148 ], Olszewska et al [ 168 ], Bajya et al [ 182 ], and Hasan-Nezhad et al [ 178 ] analyzed the ballistic performance of a lightweight armor vest under other condition, namely using UHMWPE or E-Glass fabrics. Further analysis can also be observed in Nayak et al [ 191 ], such as thermogravimetric analysis, rheological tests, and high-strain tests, which are beyond the scope of the present work.…”

Section: State-of-the-artmentioning

confidence: 99%

“…Hasan-nezhad et al [ 178 ] investigated the effect of modifying fumed SiO 2 nanoparticles in STF using triethoxysilane on the ballistic performance of 3D glass fabrics. The fluid containing treated SiO 2 particles dispersed in PEG 400 was denoted as treated STF (TSTF), while the triethoxysilane-free fluid was denominated as pure STF (PSTF).…”

Section: State-of-the-artmentioning

confidence: 99%

Fabric Impregnation with Shear Thickening Fluid for Ballistic Armor Polymer Composites: An Updated Overview

et al. 2022

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As destructive power of firearms raises over the years, ballistic armors are in continuous need of enhancement. For soft armors, this improvement is invariably related to the increase of stacked layers of high-strength fiber fabrics, which potentially restrains wearer mobility. A different solution was created in the early 2000s, when a research work proposed a new treatment of the ballistic panels with non-Newtonian colloidal shear thickening fluid (STF), in view of weight decreasing with strength reinforcement and cost-effective production. Since then, databases reveal a surge in publications generally pointing to acceptable features under ballistic impact by exploring different conditions of the materials adopted. As a result, several works have not been covered in recent reviews for a wider discussion of their methodologies and results, which could be a barrier to a deeper understanding of the behavior of STF-impregnated fabrics. Therefore, the present work aims to overview the unexplored state-of-art on the effectiveness of STF addition to high-strength fabrics for ballistic applications to compile achievements regarding the ballistic strength of this novel material through different parameters. From the screened papers, SiO2, Polyethylene glycol (PEG) 200 and 400, and Aramid are extensively being incorporated into the STF/Fabric composites. Besides, parameters such as initial and residual velocity, energy absorbed, ballistic limit, and back face signature are common metrics for a comprehensive analysis of the ballistic performance of the material. The overview also points to a promising application of natural fiber fabrics and auxetic fabrics with STF fluids, as well as the demand for the adoption of new materials and more homogeneous ballistic test parameters. Finally, the work emphasizes that the ballistic application for STF-impregnated fabric based on NIJ standards is feasible for several conditions.

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“…Furthermore, drop-weight impact testing has been carried out to assess the impact behaviors of STFCs with novel or unusual structures. Hasan-nezhad et al 73 introduced low-velocity impact tests on a drop-weight impact machine to examine the cushioning behavior of multi-ply 3D fabrics impregnated with pure or treated STF. Test results showed that the applied impact force on treated STF-impregnated fabric was less than that on pure STF-impregnated fabric, and thereby the STF properties could affect the cushioning effects of fabrics.…”

Section: Drop-weight Impactmentioning

confidence: 99%

Shear thickening fabric composites for impact protection: a review

Tan

2022

Textile Research Journal

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Fabrics with proper mechanical properties and high structural designability are frequently selected as the reinforcement of flexible composites. Shear thickening materials (STMs), including shear thickening fluid and shear thickening gel, are dense colloidal suspensions exhibiting an abrupt increase in viscosity with increasing shear rate. Shear thickening fabric composites (STFCs) which combined STM with fabrics, have been increasingly in demand for impact protective applications due to their tremendous potential. Herein, the characteristics of STM and the effects of fabric reinforcement on STFC impact behaviors are discussed for optimizing their properties and structures. Subsequently, the impact behaviors of STFCs obtained by multiple testing approaches with different impact threats are reviewed systematically. Furthermore, a comprehensive summary of the existing literature on stab, drop-weight, split Hopkinson pressure bar, and ballistic impact protective mechanisms of STFCs is presented. It is found that based on the proper selection of STM types, thorough mechanistic explanations of STFC impact behaviors are instructive and could facilitate the development of wearable protective equipment. The purpose of this critical review is to provide a framework for comparison of the effective impact resistances of STFCs across many applications and to discuss issues for future research.

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High- and low-velocity impact experiments on treated STF/3D glass fabrics

Cited by 31 publications

References 45 publications

Structural design and impact resistance of three‐dimensional structure‐reinforced flexible polymer composites

Structural design and impact resistance of three‐dimensional structure‐reinforced flexible polymer composites

Fabric Impregnation with Shear Thickening Fluid for Ballistic Armor Polymer Composites: An Updated Overview

Shear thickening fabric composites for impact protection: a review

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