Accession Number : AD0800443

Title :   THE MECHANICAL BEHAVIOR OF A FILLED ELASTOMER AT HIGH STRAIN RATES.

Descriptive Note : Technical rept.,

Corporate Author : COLUMBIA UNIV NEW YORK DEPT OF CIVIL ENGINEERING AND ENGINEERING MECHANICS

Personal Author(s) : Nicholas, T. ; Freudenthal, A. M.

Report Date : AUG 1966

Pagination or Media Count : 23

Abstract : The mechanical properties of a salt-filled polyurethane elastomer have been investigated at high rates of strain and at several temperatures. Constant strain rate tests up to 17 in./in./sec. at temperatures from 40 to 160 F have been performed to determine the relaxation modulus in tension and the effects of strain and temperature on this modulus. The effects of time, strain and temperature have been found to be separable for this highly filled material even after dewetting has occurred and the stress-strain curve is highly non-linear. The relaxation modulus has been evaluated over a time range from 0.0001 to 100 sec. at 70 F. (Author)

Descriptors :   (*ELASTOMERS, ISOCYANATE PLASTICS), (*ISOCYANATE PLASTICS, IMPREGNATION), POTASSIUM COMPOUNDS, CHLORIDES, THEORY, STRESSES, STRAIN(MECHANICS), TEMPERATURE, SOLID ROCKET PROPELLANT BINDERS, SOLID ROCKET OXIDIZERS, MATHEMATICAL ANALYSIS, TENSILE PROPERTIES, LOADS(FORCES), DEFORMATION, TRANSITION TEMPERATURE, MECHANICAL PROPERTIES.

Subject Categories : Elastomers and Rubber

Distribution Statement : APPROVED FOR PUBLIC RELEASE