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http://dx.doi.org/10.7234/kscm.2008.21.5.023

Puncture and Cutting Resistance Characteristics of Shear Thickening Fluid Impregnated Kevlar Fabrics  

Lee, Bok-Won (KAIST 항공우주공학과 대학원)
Kim, Il-Jin (KAIST 항공우주공학과 대학원)
Lee, Yeon-Gwan (KAIST 항공우주공학과 대학원)
Kim, Chun-Gon (KAIST 항공우주공학과)
Yoon, Byung-Il (국방과학연구소 기술연구본부)
Paik, Jong-Gyu (국방과학연구소 기술연구본부)
Publication Information
Composites Research / v.21, no.5, 2008 , pp. 23-30 More about this Journal
Abstract
Stab threats using sharp edged or pointed Instruments could be easily encountered by police officers or soldiers. In this study, the shear thickening fluids (STF) was impregnated into Kevlar fabrics to improve the stab protection and the resistance of STF impregnated Kevlar fabrics was experimentally investigated. The puncture and cut resistance were tested using a drop test machine withspike and knife indenters fabricated based on the National Institute of Justice (NIJ) standard. The STF was filled with spherical $SiO_2$ particles having an average diameter of 100nm, 300nm, and 500nm. The effect of particle size on puncture and cut resistance of STF impregnated Kevlar fabrics was also investigated. The measured impact load histories showed that STF impregnation into fabric leads to withstand higher peak loads than that of neat fabrics under spike test. The test results showed that Kevlar impregnated with STF exhibit remarkable improvements in puncture resistance while it is slightly influential on the cut resistance. Specifically, particle size is the one of the dominant factors controlling fabric resistance to puncture under spike impact test.
Keywords
Shear Thickening Fluid; Kevlar; Puncture resistance; Cutting resistance; Particle Size;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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