A Continuum Model of a Thermoelastic Solid Capable of Undergoing Phase Transitions

Abstract

We construct explicitly a Helmholtz free energy, a kinetic relation and a nucleation criterion for a one-dimensional thermoelastic solid capable of undergoing either mechanically or thermally-induced phase transitions. We study the hysteretic macroscopic response predicted by this model in the case of quasi-static processes involving stress cycling at constant temperature, thermal cycling at constant stress, or a combination of mechanical and thermal loading that gives rise to the shape-memory effect. These predictions are compared qualitatively with experimental results.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1992
Accession Number
ADA251751

Entities

People

  • James K. Knowles
  • Rohan Abeyaratne

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alloys
  • Energy
  • Equations
  • Free Energy
  • Heat Energy
  • Isothermal Processes
  • Latent Heat
  • Materials
  • Materials Science
  • Mechanical Engineering
  • Mechanics
  • Nucleation
  • Phase Transformations
  • Potential Energy
  • Stress Strain Relations
  • Thermodynamics
  • Transitions

Readers

  • Materials Science and Engineering.
  • Structural Dynamics.