Accession Number : AD0857346

Title :   Thermomechanical Coupling Phenomena in Non-Isothermal Viscoelastic Solids.

Descriptive Note : Technical rept.,

Corporate Author : ROHM AND HAAS CO HUNTSVILLE AL REDSTONE RESEARCH LABS

Personal Author(s) : Cost, Thomas L.

Report Date : AUG 1969

Pagination or Media Count : 131

Abstract : The increasing use of viscoelastic materials in cyclic loading applications has created a need for an understanding of the thermomechanical coupling phenomenon of which mechanical energy exerted, in deforming a material is converted into thermal energy. Three basic approaches to a mathematical analysis of this phenomenon are reviewed and discussed in as similar a mathematical notation as possible. The theories are shown to produce similar forms for the constitutive relations although the basic approaches are considerably different. An experiment was performed on a solid circular cylinder of a urethane rubber and the results presented. (Author, modified-PL)

Descriptors :   *ROCKET PROPELLANT GRAINS, LOADS(FORCES), VISCOELASTICITY, PLASTICS, DEFORMATION, THERMAL PROPERTIES, VIBRATION, MECHANICAL PROPERTIES, THERMODYNAMICS, EQUATIONS OF MOTION, MATHEMATICAL MODELS, BOUNDARY VALUE PROBLEMS, STRUCTURAL PROPERTIES.

Subject Categories : Mechanics
      Thermodynamics
      Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE