Accession Number : AD0698356

Title :   MECHANICS OF VISCOELASTIC COMPOSITES.

Descriptive Note : Annual technical rept. 1 Mar 68-31 Aug 69,

Corporate Author : AKRON UNIV OHIO

Personal Author(s) : Gent,A. N. ; Henry,R. L. ; Hilyard,N. C. ; Kanakkanatt,S. V. ; Meinecke,E. A.

Report Date : NOV 1969

Pagination or Media Count : 85

Abstract : Apparatus has been developed to measure the dynamic mechanical properties of foamed materials filled with a viscous fluid, over a frequency range from 0.002 to 200 Hz and a temperature range from -50 o C to +100 o C. Measurements have been made on various foam/ fluid systems including rubber latex, polyether and polyester foams filled with air, glycerin, silicone oil and water. The Gent-Rusch theory has been modified to take into account inertia effects, damping in the matrix material itself, and special features of the text-piece assembly . The theory is shown to describe the measurements successfully and verifies the engineering validity of the approach outline. (Author-PL)

Descriptors :   (*COMPOSITE MATERIALS, *ELASTOMERS), (*FOAM RUBBER, *VISCOELASTICITY), (*EXPANDED PLASTICS, VISCOELASTICITY), (*ISOPRENE, PHOTOELASTICITY), MECHANICAL PROPERTIES, VULCANIZATES, POLYESTER PLASTICS, VIBRATION ISOLATORS, SHOCK ABSORBERS, DAMPING, MOLECULAR STRUCTURE, ORGANIC SOLVENTS, FLUID FLOW, FRICTION, RUBBER, GLYCEROLS, OILS

Subject Categories : Laminates and Composite Materials
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE