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Title: Effect of twist on transverse impact response of ballistic fiber yarns

Abstract

A Hopkinson bar was employed to conduct transverse impact testing of twisted Kevlar KM2 fiber yarns at the same impact speed. The speed of Euler transverse wave generated by the impact was measured utilizing a high speed digital camera. The study included fiber yarns twisted by different amounts. The Euler transverse wave speed was observed to increase with increasing amount of twist of the fiber yarn, within the range of this investigation. As a result, the higher transverse wave speeds in the more twisted fiber yarns indicate better ballistic performance in soft body armors for personal protection.

Authors:
 [1];  [2]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Laboratories, Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1236223
Alternate Identifier(s):
OSTI ID: 1422666
Report Number(s):
SAND-2015-0951J
Journal ID: ISSN 0734-743X; 566918
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
International Journal of Impact Engineering
Additional Journal Information:
Journal Volume: 85; Journal Issue: C; Journal ID: ISSN 0734-743X
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; transverse impact; ballistic fiber; twist; ballistic performance; Hopkinson bar

Citation Formats

Song, Bo, and Lu, Wei -Yang. Effect of twist on transverse impact response of ballistic fiber yarns. United States: N. p., 2015. Web. doi:10.1016/j.ijimpeng.2015.06.005.
Song, Bo, & Lu, Wei -Yang. Effect of twist on transverse impact response of ballistic fiber yarns. United States. doi:10.1016/j.ijimpeng.2015.06.005.
Song, Bo, and Lu, Wei -Yang. Mon . "Effect of twist on transverse impact response of ballistic fiber yarns". United States. doi:10.1016/j.ijimpeng.2015.06.005. https://www.osti.gov/servlets/purl/1236223.
@article{osti_1236223,
title = {Effect of twist on transverse impact response of ballistic fiber yarns},
author = {Song, Bo and Lu, Wei -Yang},
abstractNote = {A Hopkinson bar was employed to conduct transverse impact testing of twisted Kevlar KM2 fiber yarns at the same impact speed. The speed of Euler transverse wave generated by the impact was measured utilizing a high speed digital camera. The study included fiber yarns twisted by different amounts. The Euler transverse wave speed was observed to increase with increasing amount of twist of the fiber yarn, within the range of this investigation. As a result, the higher transverse wave speeds in the more twisted fiber yarns indicate better ballistic performance in soft body armors for personal protection.},
doi = {10.1016/j.ijimpeng.2015.06.005},
journal = {International Journal of Impact Engineering},
number = C,
volume = 85,
place = {United States},
year = {2015},
month = {6}
}

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Cited by: 3 works
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