Accession Number : AD0284314

Title :   THERMAL EXPANSION OF PHOTOELASTIC MATERIALS

Corporate Author : NEW YORK UNIV N Y SCHOOL OF ENGINEERING AND SCIENCE

Personal Author(s) : COLAO,ANGELO ; BECKER,HERBERT

Report Date : AUG 1962

Pagination or Media Count : 1

Abstract : A quartz thermal expansion apparatus was developed to measure the thermal expansion of photoviscoelastic plastics. Three different methods of motion measurement correlated with a maximum error of ! 1 per cent using three different models of Hysol 4290 epoxy. The thermal expansion of a 30 per cent plasticized epoxy was determined and was found to exhibit essentially the same characteristics as the 4290 epoxy except for a shift in the temperature scale. Both sets of data are similar to rocket grain behavior. (Author)

Descriptors :   *EPOXY RESINS, *PHOTOELASTICITY, *PLASTICS, DESIGN, LABORATORY EQUIPMENT, MEASUREMENT, MOTION, PROPELLANT GRAINS, PROPELLANTS, TEST METHODS

Distribution Statement : APPROVED FOR PUBLIC RELEASE