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Search Publications by: Walter G. McDonough (Assoc)

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Displaying 1 - 25 of 186

Nanostructural Evidence of Mechanical Aging and Performance Loss in Ballistic Fibers

September 29, 2017
Author(s)
John Howarter, Ming Liu, Walter G. McDonough, Christopher Soles, Gale A. Holmes
It is understood that the ballistic resistance of aromatic polyamide fibers is related to the fiber's ultimate tensile strength, strain-to-failure, and Young's modulus. Ideal high-performance ballistic materials maximize these properties while minimizing

STANDARD REFERENCE MATERIALS FOR THE POLYMERS INDUSTRY

May 24, 2016
Author(s)
Walter G. McDonough, Sara Orski, Charles M. Guttman, Kalman Migler, Kathryn L. Beers
The National Institute of Standards and Technology (NIST) provides science, industry, and government with a central source of well-characterized materials certified for chemical composition or for some chemical or physical property. These materials are

Multi-scale measurement for tensile behaviors of glass fiber composites at high rate loading: Fiber fragmentation behaviors in epoxy resin

May 19, 2015
Author(s)
Jae Hyun Kim, Steven P. Mates, Nathanael A. Heckert, Walter G. McDonough, Gale A. Holmes
High strength and light weight composite materials used in various structural components of aviation and automotive applications deform under high rate loading conditions during collision. Since composite structures using continuous fibers are constituted

The Testing Program at NIST on Fibers Used in Soft Body Armor Applications

March 21, 2015
Author(s)
Walter G. McDonough, Amanda L. Forster, Jae Hyun Kim, Nathanael A. Heckert, Joy P. Dunkers, Scott A. Wight, Gale A. Holmes
The goal of this paper and presentation is to give an update of the research effort to date being conducted at the National Institute of Standards and Technology (NIST) on polymeric fibers used in soft body armor with a special emphasis on new fibers under

TESTING AND ANALYSES OF COPOLYMER FIBERS BASED ON 5-AMINO-2-(P-AMINOPHENYL)-BENZIMIDAZOLE

September 22, 2014
Author(s)
Walter G. McDonough, Joy P. Dunkers, Amanda L. Forster, Jae Hyun Kim, Scott A. Wight, Gale A. Holmes
Since the well-publicized failure of a body armor used by a police officer at a threat level the armor had been designed to survive, it has become imperative that the long-term properties and performance of new fibers being considered for use be understood

Analyzing a Co-Polymer Aramid Fiber for Use in Soft Body Armor

October 25, 2013
Author(s)
Walter G. McDonough, Jae Hyun Kim, Nathanael A. Heckert, Amanda L. Forster, Scott A. Wight, Joy P. Dunkers, Gale A. Holmes
Since the well-publicized failure of body armor used by a police officer, it has become imperative that the long-term properties and performance of new fibers being considered for use be understood. The range of interest is from the molecular properties of