Path Dependence of Structural Relaxation of Elastomeric Glasses.

Abstract

The theoretical calculation based on the general solution of a multi-ordering-parameter model is extended to study the combined pressure and temperature effects on the relaxation of a polyurethane elastomeric glass (solithane 113). Distinctively different relaxation behavior was produced at a point (P,T) with the glasses arrived at the point by different paths, along an isonbar and along an isotherm. A general solution for the kinetics of a certain path is presented. Aging behavior and memory effects caused by combination of pressure and temperature perturbations were investigated to predict the experimental results.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1986
Accession Number
ADA175116

Entities

People

  • C.-l. Tang
  • K. D. Pae
  • K. Vijayan

Organizations

  • Rutgers University–New Brunswick

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Classification
  • Equations
  • Experimental Data
  • Glass Transition Temperature
  • Governments
  • High Pressure
  • Isotherms
  • Materials
  • Materials Science
  • Military Research
  • Modulus Of Elasticity
  • Polymers
  • Relaxation Time
  • Transition Temperature
  • United States
  • United States Government
  • Universities

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Mechanical Engineering/Mechanics of Materials.