전단농화유체를 함침한 케블라 직물의 저속충격 거동 및 마찰특성 연구

이복원; 이성현; 김천곤; 윤병일; 백종규

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자료유형: 학술저널

저자정보: 이복원 이성현 김천곤 윤병일 백종규

저널정보: 한국복합재료학회 Composites Research Composites Research 제21권 제2호

발행연도: 2008.1

수록면: 15 - 24 (10page)

이용수

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연구주제

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연구배경

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연구방법

🏆

연구결과

초록· 키워드

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In this study, shear thickening fluid (STF) filled with rigid nano silica particles was impregnated in plain woven Kevlar fabrics to improve the impact resistance performance. The nano silica particles with an average diameter of 100nm, 300nm, and 500nm were used to make shear thickening fluid to estimate the effect of particle size on the impact behavior of STF impregnated Kevlar fabrics. The yarn pull-out and frictional tests were conducted to estimate the effect of impregnated STF on the frictional characteristics. The test results showed that the friction forces were dramatically increased at the STF onset shear strain rates that were measured in preliminary rheology tests. The low speed impact tests were performed using the drop test machine. The results showed that the impregnated STF improved the impact resistance performance of the Kevlar fabrics in terms of the impact energy absorption and the deformation. It has been shown through tests that the impregnated STF affects the interfacial friction which contributes to improve the energy absorption in the Kevlar fabrics. Especially, the impregnation of the STF with the smaller particle size into the Kevlar fabrics showed the better performance in impact energy absorption.

#전단농화유체 #Shear Thickening Fluid) #액체방탄재 #Liquid Body Armor) #얀 뽑힘 #Yarn Pull-out) #케블라 #Kevlar) #입자크기 #Particle Size)

참고문헌 (10)

참고문헌 신청

B.J. Maranzano / 2001 / The effect of Inter-particle Interactions and Particle Size on Reversible Shear Thickening: Hard Sphere Colloidal Dispersions / Journal of Rheology 45

J. E. Kirkwood / 2004 / Yarn Pull-out as a Mechanism for Dissipation of Ballistic Impact Energy in Kevlar KM-2 fabric, Part Ⅱ: Prediction of Ballistic Performance, in:U.S. Army Research

K. M. Kirkwood / 2004 / Yarn Pull-out as a Mechanism for Dissipation of Ballistic Impact Energy in Kevlar KM-2 Fabric, Part Ⅰ: Quasi-static Characterization of Yarn Pull-out, U.S. Army

M. J. Decker / 2005 / Low velocity ballistic impact Properties of Shear Thickening Fluid(STF)-fabric Composites / Proceedings of the 22th International Symposium on Ballistic : 777

M. J. Decker / 2007 / Stab resistance of shear thickening fluid (STF)-treated fabrics / Composite Science and Technology 67 : 565 ~ 578

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