Investigation on Impact Strength Properties of Kevlar Fabric using Different Shear Thickening Fluid Composition

Joselin, R.; Wilson, W. Jacob

doi:10.14429/dsj.64.7322

Cited by 20 publications

(3 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[8][9][10][11][12] Extensive literature has already been reported on improving the ballistic penetration resistance of different fabrics with the help of STF treatment. [13][14][15][16][17] Various other factors such as the density of the materials, the media viscosity and the frictional contact between yarns and fabrics also play an important role in energy absorption or the yarn pull-out mechanism. [18][19][20] STFs can be prepared by dispersing silica particles in a carrier uid like polyethylene glycol (PEG).…”

Section: Introductionmentioning

confidence: 99%

Functionalization of silica particles to tune the impact resistance of shear thickening fluid treated aramid fabrics

et al. 2017

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Functionalization of silica particles to tune the impact resistance of shear thickening fluid treated aramid fabrics

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The maximum spike load is 193.04 N at displacement of 9.97 mm, corresponding to 1.92 J energy. When the spike first contacts the aramid fabrics, the STF/MWCNTs system efficiently thickens to maximize the friction among fiber bundles and fibers, prohibiting the spike from piercing the aramid fabrics [38,39]. As a result, the stress rises with an increase in the corresponding strain.…”

Section: Resultsmentioning

confidence: 99%

Rheological response and quasi-static stab resistance of STF/MWCNTs-impregnated aramid fabrics with different textures

Cen

Peng

et al. 2019

Journal of Industrial Textiles

View full text Add to dashboard Cite

Terrorist attacks occur constantly, which subsequently arouses awareness of self-protection. In order to alleviate the harm caused by sharp objects of knives and daggers, a design of flexible stab-resistant materials that are impregnated with the shear thickening fluid (STF)/multi-walled carbon nanotubes (MWCNTs) system and different texture of fabrics is presented. STF/MWCNTs are composed of polyethylene glycol (PEG 200) as the dispersion medium and silica (SiO2) of 12 nm and 75 nm as disperse phase as well as MWCNTs as supplementary reinforcement, in expectation to provide the aramid fabrics with high strengths, low critical shear rate, and a short thickening response time. The textures of aramid fabrics—plain (P), twill (T), satin (S), or basket (B) weave—are saturated in the STF/MWCNTs system. The synergetic influences of silica size and texture on tensile strength, quasi-static knife, and spike stab resistances of the STF/MWCNTs-impregnated aramid fabrics are examined. Results show that the plain aramid fabric immersed in the STF/MWCNTs system containing 12 nm SiO2(SM12) exhibit the maximum tensile strength and quasi-static knife stab resistance, 14.7 MPa and 8.9 MPa, respectively, which is 1.15 and 1.43 times higher than pure aramid fabrics. Moreover, the basket-weave aramid fabric immersed in the STF/MWCNTs system containing 12 nm SiO2have the maximum quasi-static spike stab resistance of 17.12 MPa compared to other textures of fabrics, which is 1.05 times higher than those immersed in the 75 nm SiO2STF/MWCNTs (SM75) system and 1.33 times higher than that of pure basket aramid fabrics.

show abstract

“…Yeh et al quantitatively discussed the enhancement effect of STF on the stab-proof performance of STF/Kevlar composites, and the knife drop tower tests showed that the addition of the STF could improve the energy absorption by 20% [ 17 ]. Meanwhile, numerous studies have shown that the composition of STF [ 18 , 19 , 20 ], solid content [ 21 , 22 ], dispersed phase particle [ 21 , 22 , 23 , 24 ], as well as the molecular weight of dispersed medium [ 25 ] could influence the stab-resistant performance of composites. In our previous work, the influence of silica particle morphology on quasi-static and dynamic stab resistance of STF/fabrics was studied in detail, and the spherical particles have been proved to have greater application advantages to improve the material’s stabbing resistance [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Stab-Resistant Performance of the Well-Engineered Soft Body Armor Materials Using Shear Thickening Fluid

Wei

Dong²,

Wen³

et al. 2022

Molecules

View full text Add to dashboard Cite

Stab-resistant body armor can effectively prevent sharp instruments from attacking the protected parts and reduce the threat to human bodies. Shear thickening fluid (STF) is a kind of smart material with variable viscosity and its viscosity can change significantly with external stimuli. The soft and adaptive characteristics of STF provide a new idea for improving the performance of stab-proof materials. In this work, three kinds of soft anti-stabbing materials were designed and prepared with aramid, poly–p–phenylene benzodioxazole (PBO), and carbon fiber fabrics impregnated with STF. Quasi-static puncture tests and dynamic impact tests were conducted to compare the performance of different anti-stabbing structures. The results showed that the peak piercing force of the STF-treated fabrics in the puncture testing was greatly increased than that of neat samples. Against the D2 knife, the maximum impact load of STF/PBO fiber fabric was increased from 55.8 N to 72.9 N, increasing by 30.6%. Against the D3 spike, the maximum impact load of STF/aramid fabric was increased from 128.9 N to 254.7 N, increasing by 197.6%. The mechanical properties of fibers were important factors for the resistance to knives, and the fabric structure was the key point to bear the spike. Optical photographs of fabric fractures and scanning electron microscope analysis indicated that the STF effectively limited the slip of the fiber bundle when the tool penetrated the fabric, which played a positive role in maintaining the tightness and integrity of the fabric structure.

show abstract

Investigation on Impact Strength Properties of Kevlar Fabric using Different Shear Thickening Fluid Composition

Cited by 20 publications

References 17 publications

Functionalization of silica particles to tune the impact resistance of shear thickening fluid treated aramid fabrics

Functionalization of silica particles to tune the impact resistance of shear thickening fluid treated aramid fabrics

Rheological response and quasi-static stab resistance of STF/MWCNTs-impregnated aramid fabrics with different textures

Stab-Resistant Performance of the Well-Engineered Soft Body Armor Materials Using Shear Thickening Fluid

Contact Info

Product

Resources

About