Accession Number : AD0479735

Title :   INVESTIGATION OF THE HIGH SPEED IMPACT BEHAVIOR OF FIBROUS MATERIALS.

Descriptive Note : Technical rept. Jan 64-Dec 65,

Corporate Author : FABRIC RESEARCH LABS INC DEDHAM MA

Personal Author(s) : Coskren, Robert J. ; Chu, Chauncey C.

Report Date : JAN 1966

Pagination or Media Count : 76

Abstract : A group of Nomex and glass webbings were evaluated for impact tensile behavior at testing speeds of 200 to 700 feet per second. It was found that the impact energy absorption of Nomex webbings decreases with increasing testing speed until at 700 feet per second there may be experienced a loss as much as 88 percent of the static value. Elevated temperature exposure of Nomex webbing in a freely relaxed condition prior to impact testing appears to be helpful in improving performance at both 500 and 700 feet per second, but is of little importance at 200 feet per second. Glass webbings, while poorer on a weight basis than Nomex, showed improvements in energy absorption capability with increased testing speed, one spliced sample indicating almost a tenfold increase over its static energy value. (Author, modified-PL).

Descriptors :   (*TEXTILES, IMPACT SHOCK), (*SYNTHETIC FIBERS, IMPACT TESTS), GLASS TEXTILES, NYLON, ENERGY, ABSORPTION, TENSILE PROPERTIES.

Subject Categories : Textiles

Distribution Statement : APPROVED FOR PUBLIC RELEASE