Effects of fiber gripping methods on single fiber tensile tests: Parametric statistical analyses of tensile strengths and failure strains

Published

May 9, 2013

Author(s)

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

Abstract

The Kolsky bar test has been widely used in measuring material response under high strain rate conditions. Initial experiments in the literature applying this test to measure single fiber properties for fibers used in soft body armor with the Kolsky bar used a short single fiber (2 mm to 10 mm) glued directly to the Kolsky bar, which is time consuming due to curing time and possible adhesive wicking into the fiber gauge length region. To measure single fiber properties reproducibly and reliably, we have been investigating several different gripping methods. We measured single fiber properties under quasi-static conditions using different gripping methods and carried out statistical analyses for tensile strengths and failure strains with 2- and 3-parameter Weibull, normal, and G and H distributions to study underlying distributions as a function of gripping methods. The work presented here reports on our findings to date.

Proceedings Title

2013 society for the Advancement of Material and Process Engineering

Conference Dates

May 6-9, 2013

Conference Location

Long Beach, CA

Pub Type

Conferences

Keywords

soft body armor, single fiber tensile test, statistics, fiber gripping methods

Citation

, J. , Heckert, N. , McDonough, W. , Rice, K. and Holmes, G. (2013), Effects of fiber gripping methods on single fiber tensile tests: Parametric statistical analyses of tensile strengths and failure strains, 2013 society for the Advancement of Material and Process Engineering, Long Beach, CA (Accessed April 25, 2024)