Effect of Physical Aging on Mechanical Behavior of an Elastomeric Glass under Combined Pressure and Temperature.

Abstract

The relaxation or physical aging behavior of a polyurethane elastomeric glass (Solithane 113, T(g) = -20 C at atm.) was studied at various states of pressure and temperature, near and far away from the glass transition. Those (P,T) states were reached via either isobaric or isothermal paths. Relaxation behavior of these glasses has been found to be a function of P,T and paths. The Young's modulus (E) was determined as a function of aging time. When all the experimental data, obtained at various (P,T) states for a specific path, were replotted in a form of log E vs 1/P for isothermic glass and log E vs 1/T for isobaric glass, all curves appear to converge to a specific value of E. Keywords: High pressure; Temperature; Aging; Relaxation; Elastomeric glass; Young's modulus; Solithane 113; Memory behavior.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1986
Accession Number
ADA175189

Entities

People

  • K. D. Pae
  • K. Vijayan

Organizations

  • Rutgers University–New Brunswick

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Barometric Pressure
  • Biomedical And Dental Materials
  • Equations
  • Experimental Data
  • Glass Transition Temperature
  • High Pressure
  • Materials
  • Materials Laboratories
  • Materials Science
  • Mechanics
  • Modulus Of Elasticity
  • Polymers
  • Pressurization
  • Resins
  • Stress Strain Relations
  • Transition Temperature
  • United States Government

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Mechanical Engineering/Mechanics of Materials.