Stab Resistance of Shear Thickening Fluid (Stf)–kevlar Composites for Body Armor Applications

Egres, Ronald G.; Decker, Michael J.; Halbach, C. J.; Lee, Y. S.; Kirkwood, John; Kirwood, K. M.; Wagner, Norman J.; Wetzel, E. D.

doi:10.1142/9789812772572_0034

Cited by 64 publications

(70 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The integration of hard particles within a material system has previously demonstrated improvements in dynamic and ballistic behavior [1,2,3,4]. Consequently, dense particle suspensions have been characterized under ballistic impact conditions in order to determine the composite parameters responsible for improved ballistic resistance [5].…”

Section: Introductionmentioning

confidence: 99%

A ballistic performance study on particle-infused elastomeric systems

Comtois-Arnaldo

Ouellet

Petel

2018

AIP Conference Proceedings

View full text Add to dashboard Cite

Abstract. The present study investigates the complex multiscale dynamic response of particle-filled systems in an effort to link the bulk material behavior to strain-rate activated microstructures. These investigations involve multiphase systems consisting of micron-sized ceramic powders integrated within a siloxane elastomer to create flexible composites having varying inclusion properties. In particular, the effects of varying particle volume fraction, strength, and density are under investigation. The experimental investigation concerns the ballistic penetration of composite targets that are impacted by 16-grain blunt-nosed steel projectiles in the range of 200 -900 m s −1 . The results are compared to an analytical penetration model in order to shed light on the dominant penetration mechanisms and their relationship to the composite microstructure.

show abstract

Section: Introductionmentioning

confidence: 99%

A ballistic performance study on particle-infused elastomeric systems

Comtois-Arnaldo

Ouellet

Petel

2018

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

“…Aramid fabrics with high yarn count were also developed to provide stabbing (puncture) resistance. However, these high yarn count fabrics were expensive to manufacture and typically resulted in decreases in ballistic protection efficiency of the fabrics [7]. One of approaches to enhance the stabbing resistance is to roughen the surface of fibres or yarns by sanding or corona treatment to achieve higher coefficient of friction.…”

Section: Introductionmentioning

confidence: 99%

Stabbing resistance of body armour panels impregnated with shear thickening fluid

Chen

Wang

et al. 2017

Composite Structures

View full text Add to dashboard Cite

Please cite this article as: Xu, Y., Chen, X., Wang, Y., Yuan, Z., Stabbing r esistance of body ar mour panels impr egnated with shear thickening fluid, Composite Structures (2016), doi: http://dx.doi.org/10. 1016/ j.compstruct.2016.12.056 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Stabbing resistance of body armour panels impregnated with shear thickening fluid AbstractThis paper presents an investigation on the use of shear thickening fluid (STF) to improve stabbing resistance of soft ballistic body armour. STFs were produced from polyethylene glycol and silica nanoparticles. The effects of silica nanoparticle sizes and silica nanoparticle weight fraction were studied and STFs made with the different compositions were used to impregnate the Twaron ® woven fabrics. Systemic investigations into rheological behaviour of STF were carried out experimentally on STFs with different compositions. STF impregnated woven fabric panels were created and tested for stabbing resistance. Stabbing impact tests were conducted on 6 different types of STF impregnated fabric panels against 2 untreated fabric panels, and the results were studied against the benchmark fabrics without STF impregnation. Based on the same number of layers of fabric, the STF impregnation improves the stabbing resistance notably. For same panel areal density, the STF impregnated panels outperform the untreated fabric panel. The results of this research indicate the possibility of lighter ballistic panel materials for higher stabbing protection. It was also found that higher nanoparticle weight fraction and larger nanoparticle size of silica leads to better stabbing resistance performance among the STF impregnated panels.

show abstract

“…It is proven that, by infusing the STF between fibers of Kevlar and nylon fabrics, the puncture and impact resistance and the energy absorption capacity of the fabric-fluid composite against needle, spike and knife significantly improve relative to the neat (untreated) fabric [5,[16][17][18][19][20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Effect of silica weight fraction on rheological and quasi-static puncture characteristics of shear thickening fluid-treated Twaron® composite

Baharvandi

Alebooyeh

Alizadeh

et al. 2015

Journal of Industrial Textiles

View full text Add to dashboard Cite

Intelligent energy shunting fluid/fabric base structure which utilizes well-processed shear thickening fluid has been developed. The shear thickening fluid has been synthesized by a powerful mechanical stirrer to disperse 12 nm silica particles into polyethylene glycol 200 g/mol at three concentration levels from low to near maximum packing as 15, 25 and 35 wt%. Examining the rheological behavior of the shear thickening fluid indicates that the increase of shear thickening fluid concentration leads to significant increase in the suspension's initial, critical and ultimate (up to 10 4 Pa.s) viscosities, reduction of the critical shear rate, increase of viscoelastic modulus and instability of the suspension. The quasi-static puncture test results demonstrate with the increase of shear thickening fluid concentration, the maximum bearable load by the 15, 25 and 35 wt% shear thickening fluids-treated Twaron Õ composites increases by 132, 315 and 362%, and the energy absorption increases by 143, 159 and 209%, respectively, compared to the neat fabric. Regarding penetrator structure and dimension, by using rounded penetrators, windowing and pull-out mechanisms would be expected at low velocities. However, sharpnosed penetrators most likely cause yarns to push aside that is not taken into account Downloaded from as a perfect criteria for investigation of puncture resistance performance. Also, larger penetrators have a larger presented area of impact and, as a result, break more number of yarns to penetrate the fabric.

show abstract

Stab Resistance of Shear Thickening Fluid (Stf)–kevlar Composites for Body Armor Applications

Cited by 64 publications

References 9 publications

A ballistic performance study on particle-infused elastomeric systems

A ballistic performance study on particle-infused elastomeric systems

Stabbing resistance of body armour panels impregnated with shear thickening fluid

Effect of silica weight fraction on rheological and quasi-static puncture characteristics of shear thickening fluid-treated Twaron® composite

Contact Info

Product

Resources

About