Methods In Entropic Thermomechanics

Abstract

Elements of constitutive model formulation for simple materials within a thermodynamic, finite deformation framework are reviewed. Recent developments in addressing the second law and entropy existence are emphasized for their simplicity and ease of interpretation. An original treatment of finite thermoviscoelasticity is developed in this context. A broadened Caratheodory-based entropy is proposed, and is compared to recent work of Casey (Casey J., On elastic-thermo-plastic materials at finite deformations. Int J Plast, 14, 173-91). Frame indifference, objective rates, and spins are briefly addressed, introducing application of the broadened framework to (cited work in) finite thermoviscoplasticity. Fundamental references are provided.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2000
Accession Number
ADA424142

Entities

People

  • Richard B. Hall

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Adiabatic Processes
  • Air Force
  • Air Force Research Laboratories
  • Chemical Reactions
  • Composite Materials
  • Constitutive Equations
  • Energy
  • Entropy
  • Equations
  • Free Energy
  • Heat Energy
  • Heat Flux
  • Materials
  • Mechanics
  • Temperature Gradients
  • Thermodynamics
  • Thermomechanics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Theoretical Analysis.