Accession Number : ADA424323
Title : Yarn Pull-Out as a Mechanism for Dissipation of Ballistic Impact Energy in Kevlar KM-2 Fabric, Part 2: Prediction of Ballistic Performance
Descriptive Note : Final rept. Jan 2003-Dec 2003
Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
Personal Author(s) : Kirkwood, John E. ; Kirkwood, Keith M. ; Lee, Young S. ; Egres, Ronald G., Jr. ; Wetzel, Eric D.
Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA424323
Report Date : MAY 2004
Pagination or Media Count : 34
Abstract : The energy absorbed in ballistic fabrics is modeled by assuming yarn pull-out including yarn uncrimping and translation as the primary energy absorption mechanisms. Using a semi-empirical model of yarn pull-out based on laboratory tests predictions for ballistic performance of fabrics are compared to ballistic test results. It is demonstrated that quasi-static pull-out results can be correlated quantitatively with yarn pull-out during ballistic impact.
Descriptors : *POLYAMIDE PLASTICS, TEST AND EVALUATION, IMPACT, PREDICTIONS, FABRICS, BALLISTICS, YARNS, ENERGY ABSORBERS.
Subject Categories : AMMUNITION AND EXPLOSIVES
Distribution Statement : APPROVED FOR PUBLIC RELEASE