Accession Number : AD0711761

Title :   INVESTIGATIONS OF ELASTIC PROPERTIES OF SOME PLASTICS AT HIGH PRESSURES BY THE ULTRASONIC PULSE METHOD,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Volarovich,M. P. ; Bayuk,E. I.

Report Date : 07 AUG 1970

Pagination or Media Count : 15

Abstract : Measurements were made of longitudinal and lateral elastic waves in specimens of plexiglass, polyfluoroethylene, resin, textolite and AF-4S and RN-1 glass reinforced plastics at pressures up to 4000 kg/sqcm employing a pulse ultrasonic method developed for the study of the elastic properties of rock. Linear relationship between the velocities of elastic waves and pressures were obtained for all plastics investigated. On the basis of experimental data the following elastic properties were calculated: Poisson's coefficient, Young's modulus, modulus of shear and compression. Functional expressions for these elastic properties are given. The investigation shows that at pressures of up to 4000 kg/ sqcm plastics shown linear changes in elastic parameters brought about by pressure. (Author-PL)

Descriptors :   (*PLASTICS, ELASTIC PROPERTIES), (*ULTRASONIC PROPERTIES, PLASTICS), NONDESTRUCTIVE TESTING, REINFORCED PLASTICS, HALOCARBON PLASTICS, FLUORINE COMPOUNDS, MODULUS OF ELASTICITY, ACRYLIC RESINS, LAMINATED PLASTICS, RUBBER, USSR

Subject Categories : Laminates and Composite Materials
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE