A Computer Program for Generating Deformation Mechanism Maps for Polymers

Abstract

The deformation mechanism map is a means of representing the predominant mechanism of deformation within a material over a range of deformation conditions. This paper introduces a computer program which utilizes a number of theoretical models of deformation within amorphous polymers to identify 'fields' within extension rate-temperature space where particular deformation mechanisms operate. The program is able to delineate these fields using borders and include isobars to indicate stress levels. Very good correlation is seen between the computer generated mechanism map and experimental results for PVC. Whilst in it present form the program is restricted to amorphous isotropic polymers, it can readily be extended to incorporate semicrystalline polymers or composites, as suitable deformation models become available.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1991
Accession Number
ADA246358

Entities

People

  • R. G. O'donnell

Organizations

  • Defence Science and Technology Group

Tags

DTIC Thesaurus Topics

  • Computer Programs
  • Computers
  • Elastic Properties
  • Elongation
  • Energy
  • Equations
  • Glass
  • Glass Transition Temperature
  • Heat Of Activation
  • Materials
  • Materials Science
  • Plastic Properties
  • Relaxation Time
  • Shear Modulus
  • Strain Rate
  • Transition Temperature
  • Viscosity

Readers

  • Computational Modeling and Simulation
  • Mechanical Engineering/Mechanics of Materials.
  • Polymer Science and Engineering.

Technology Areas

  • Space