Statistical comparisons for tensile properties of aramid and co-polymer aramid fibers as a function of loading rates

Published

May 20, 2015

Author(s)

Jae Hyun Kim, Nathanael A. Heckert, Kai-Li Kang, Walter G. McDonough, Kirk D. Rice, Gale A. Holmes

Abstract

High strength polymer fibers such as poly(p-phenylene terephalamide) (PPTA) are used for ballistic body armors. Additionally, a co-polymer aramid fiber containing 5-amino-2-(p-aminophenyl)-benzimidazole is also being considered as reinforcement for ballistic body armor. During ballistic impact, fibers in soft body armor are loaded in tension at fast deformation rates (typically > 1000 s-1). Compared to PPTA fibers which have been well studied, statistical characteristics of tensile properties of co-polymer aramid fibers are rarely reported. Furthermore, most of the measured fiber tensile properties which have been subjected to statistical analysis were obtained under quasi-static loading condition, many orders of magnitude loading rate lower than ballistic impact. We measure fiber tensile properties of aramid and co-polymer aramid under high rate loading conditions and compare the statistical characteristics of their respective tensile properties.

Proceedings Title

SAMPE Baltimore 2015

Conference Dates

May 18-21, 2015

Conference Location

Baltimore, MD

Pub Type

Conferences

Keywords

aramid fiber, statistics, loading rates, Kolsky bar

Citation

, J. , Heckert, N. , Kang, K. , McDonough, W. , Rice, K. and Holmes, G. (2015), Statistical comparisons for tensile properties of aramid and co-polymer aramid fibers as a function of loading rates, SAMPE Baltimore 2015, Baltimore, MD (Accessed April 25, 2024)