Numerical simulation of the impact behaviors of shear thickening fluid impregnated warp-knitted spacer fabric

Lu, Zhenqian; Wu, Liwei; Gu, Bohong; Sun, Bin

doi:10.1016/j.compositesb.2014.10.003

Cited by 61 publications

(44 citation statements)

References 22 publications

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“…The most important of which are the preparation methods, particles size, type of particles, particles volume fraction, temperature and liquid medium [50][51][52]. One of the major factors on the rheology of STFs is the particle loading, defined as the fraction of particle weight to the total weight.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Ballistic performance of Kevlar fabric impregnated with nanosilica/PEG shear thickening fluid

Khodadadi

Liaghat

Vahid

et al. 2019

Composites Part B: Engineering

141

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This study presents the response of fiber reinforced composite material composed of woven Kevlar fabric impregnated with a colloidal shear thickening fluid (STF) under high velocity impact loading. The STF was made by dispersing silica nanoparticles at 15, 25, 35 and 45 wt.% loading in polyethylene glycol. The effects of silica nanoparticle loading on energy absorption and ballistic limit were studied experimentally. Rheological results revealed that shear thickening occurred at all four nanosilica loading and higher loading showing the higher shear thickening at lower shear rate. SEM images confirmed good dispersion of nanosilica particles in the suspension. The results of the pull out test show that by increasing nanosilica loading, the force required to pull the yarn out from the fabric impregnated by STF increases. Impact resistance performance of Kevlar fabric is significantly enhanced due to the presence of STF. Although high velocity impact results show that by increasing nanosilica loading, the energy absorption of composites increases, but in high loading of nanosilica, the effectiveness of STF decreases. For further investigation, the energy absorption at the ballistic limit was normalized by the areal density of the neat and impregnated fabrics to give the specific energy absorption (SEA). It is found that the SEA of 15 wt.% nanosilica loading is lower compared to the neat fabric. Also the highest SEA turn out in the case of 35 wt.% STF/Kevlar composites in which the SEA is 2.3 times larger than those of the neat fabric.

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Section: Accepted Manuscriptmentioning

confidence: 99%

Ballistic performance of Kevlar fabric impregnated with nanosilica/PEG shear thickening fluid

Khodadadi

Liaghat

Vahid

et al. 2019

Composites Part B: Engineering

141

View full text Add to dashboard Cite

show abstract

“…Although the STF effect was not evident in the tensile properties, the shear resistance of the fabric was enhanced significantly. To further investigate the enhancing mechanism, Lu et al [33] and Park et al [34] also established a numerical simulation model to explain the energy absorption of the composite at the viewpoint of friction. Lee et al [35] performed a computational analysis to consider the effect of STF impregnation on the ballistic performance of STF impregnated fabrics.…”

Section: Introductionmentioning

confidence: 99%

High strain-rate dynamic mechanical properties of Kevlar fabrics impregnated with shear thickening fluid

Cao

Chen

Wang

et al. 2017

Composites Part A: Applied Science and Manufacturing

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“…Moreover, the mechanical properties of fabric integrated with STFs were also investigated [24][25][26][27][28]; for instance, Lu et al [26][27] reported on the compressive behaviour of warp-knitted spacer fabrics impregnated with STFs at different strain rates by experimental and numerical methods, while Cao et al [28] studied the dynamic response of Kevlar fabric impregnated with STFs using a split Hopkinson pressure bar.…”

Section: Introductionmentioning

confidence: 99%

The effect of graphene on the yarn pull-out force and ballistic performance of Kevlar fabrics impregnated with shear thickening fluids

Tan

Huang

2018

Smart Mater. Struct.

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Follow this and additional works at: https://ro.uow.edu.au/eispapers1Part of the Engineering Commons, and the Science and Technology Studies Commons Recommended Citation Recommended Citation Tan, Zhuhua; Li, Weihua; and Huang, Wei, "The effect of graphene on the yarn pull-out force and ballistic performance of Kevlar fabrics impregnated with shear thickening fluids" (2018). Faculty of Engineering and Information Sciences -Papers: Part B. 1576. Abstract AbstractThe ballistic performance of Kevlar fabric impregnated with different shear thickening fluids (STFs) were investigated at various impact velocities. The SiO 2 nanoparticle based STFs were reinforced with graphene and showed a significant increase in viscosity and shear thickening efficiency compared to pure STF. Ballistic experiments were performed on fabric treated by different STFs, and different failure modes including yarn slipping, extraction, and breakage in shear failure were obtained. To better understand how different STFs affect ballistic performance, single yarn pull-out tests were also carried out to examine the shear strength and friction between the interlocking yarns of fabric treated with STF. The results showed that STF reinforced with graphene is better at preventing the yarns from slipping, and the single yarn pullout force is almost 5 times more than pure STF. Moreover, reinforced STF also has a significant influence on the ballistic limit and energy absorption of Kevlar fabrics. And the increased amplitude of energy absorption is almost 20% more than the pure STF/Kevlar load case. Combining with the energy absorption and different failure modes, the effect of STF on the failure mechanism of neat/treated fabric was also discussed. Abstract:The ballistic performance of Kevlar fabric impregnated with different shear thickening fluids (STFs) were investigated at various impact velocities. The SiO 2 nanoparticle-based STFs were reinforced with graphene and showed a significant increase in viscosity and shear thickening efficiency compared to pure STF. Ballistic experiments were performed on fabric treated by different STFs, and different failure modes including yarn slipping, extraction, and breakage in shear failure were obtained.To better understand how different STFs affect ballistic performance, single yarn pull-out tests were also carried out to examine the shear strength and friction between the interlocking yarns of fabric treated with STF. The results showed that STF reinforced with graphene is better at preventing the yarns from slipping, and the single yarn pull-out force is almost 5 times more than pure STF. Moreover, reinforced STF also has a significant influence on the ballistic limit and energy absorption of Kevlar fabrics. And the increased amplitude of energy absorption is almost 20% more than the pure STF/Kevlar load case. Combining with the energy absorption and different failure modes, the effect of STF on the failure mechanism of neat/treated fabric was also discussed.

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Numerical simulation of the impact behaviors of shear thickening fluid impregnated warp-knitted spacer fabric

Cited by 61 publications

References 22 publications

Ballistic performance of Kevlar fabric impregnated with nanosilica/PEG shear thickening fluid

Ballistic performance of Kevlar fabric impregnated with nanosilica/PEG shear thickening fluid

High strain-rate dynamic mechanical properties of Kevlar fabrics impregnated with shear thickening fluid

The effect of graphene on the yarn pull-out force and ballistic performance of Kevlar fabrics impregnated with shear thickening fluids

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