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Search Publications by: Michael A. Riley (Fed)

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Displaying 26 - 50 of 93

Towards Building Simulation Tools for Next Generation Soft Body Armour Testing Standards

September 18, 2016
Author(s)
Steven P. Mates, Amanda L. Forster, Michael A. Riley, Kirk D. Rice, Juliana Ivancik
Accurate simulation tools for soft body armour testing would vastly improve test designer's ability to optimize and refine standards by supplying quantitative information about the influence of test variables on test outcomes. Such tools would also

Long-Term Stability of UHMWPE Fibers

February 18, 2015
Author(s)
Amanda L. Forster, Aaron M. Forster, Joannie W. Chin, Chiao-Chi Lin, Sylvain H. Petit, Kai-Li Kang, Nicholas G. Paulter Jr., Michael A. Riley, Kirk D. Rice
The superior performance of ultra-high molecular weight polyethylene fi bers is predicated on the development of a highly aligned molecular structure that allows the polymer to exhibit a superior strength in the axial direction of the fi ber. Body armor

Investigations of Near-Edge Ballistic Impacts on Law Enforcement Body Armor

September 1, 2014
Author(s)
Kirk D. Rice, Amanda L. Forster, Michael A. Riley, Nicholas Paulter
In 2005 and 2006, two law enforcement officer-involved shootings resulted in injuries to the officers when bullets were not stopped in the officers' body armor. In both cases, the bullets struck the officers' armor quite close to the edge of the ballistic

OVERVIEW OF THE TESTING PROGRAM ON FIBERS USED IN BALLISTIC APPLICATIONS

April 4, 2012
Author(s)
Amanda L. Forster, Haruki Kobayashi, Jae H. Kim, Michael A. Riley, Joy Dunkers, Scott Wight, Kirk D. Rice, Gale A. Holmes
The goal of this paper and presentation is to give an overview of the research effort to date being conducted at the National Institute of Standards and Technology on polymeric fibers used in soft body armor (SBA) and a discussion of future directions. The

Thermal Properties and Thermal Modeling of Ballistic Clay Box

December 30, 2011
Author(s)
Dale P. Bentz, Amanda L. Forster, Kirk D. Rice, Michael A. Riley
A critical component of hard and soft body armor testing is the utilization of a clay block behind the component being evaluated. One of the performance metrics used to evaluate products is the penetration depth into the clay of an indentation produced by

Analysis of Three Different Regression Models to Estimate the Ballistic Performance of New and Environmentally Conditioned Body Armor

February 14, 2011
Author(s)
Diane Mauchant, Michael A. Riley, Kirk D. Rice, Amanda L. Forster, Dennis D. Leber, Daniel V. Samarov
The performance standard for ballistic-resistant body armor published by the National Institute of Justice (NIJ), NIJ Standard 0101.06, recommends estimating the perforation performance of body armor by performing a statistical analysis on V50 ballistic

Energy Absorption Measurements to Standardize Foam in Stab Testing

September 13, 2010
Author(s)
Aaron M. Forster, Diane Mauchant, Elizabeth Wailes, Amanda L. Forster, Michael A. Riley, Kirk D. Rice
Polymer foams serve an important role in the assessment and certification of stab resistant body armor for both US and UK standards. A composite of neoprene and polyethylene foam is used behind the armor during testing. The foam mimics stab dynamics by

Effect of Moisture on Copolymer Fibers based on 5-amino-2-(p-aminophenyl)-benzimidazole.

September 6, 2010
Author(s)
Guillaume Messin, Amanda L. Forster, Kirk D. Rice, Michael A. Riley, Stephanie S. Watson
In recent years, there has been some concern in the soft body armor community that copolymer fibers based on 5-amino-2-(p-aminophenyl)-benzimidazole can release hydrochloric acid, which could potentially be detrimental to other fibers that might come in

Development of Soft Armor Conditioning Protocols for NIJ 0101.06: Analytical Results

September 24, 2009
Author(s)
Amanda L. Forster, Kirk D. Rice, Michael A. Riley, Guillaume Messin, Sylvain H. Petit, Cyril Clerici, Gale A. Holmes, Joannie W. Chin
This publication details the four major phases of analytical development work, coupled with several additional side studies, undertaken by the Office of Law Enforcement Standards in writing the Flexible Armor Conditioning Protocol in NIJ 0101.06. This