Finite Element Modeling of the Coupled Thermal and Momentum Diffusion Equations.

Abstract

The objective of this study is to develop the basic equation for a finite element formulation which can be used for solving problems related to coupled thermomechanical behavior. The formulation is based on the introduction of a new quantity, defined as heat displacement which is related to temperature in the same manner as the mechanical displacement is related to strain. The introduction of such a quantity into the thermal equation leads to a form similar to the equation of motion, so that, the governing equation for heat conduction can be regarded as an equilibrium equation.

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Document Details

Document Type
Technical Report
Publication Date
Aug 20, 1980
Accession Number
ADA088668

Entities

People

  • George A. Keramidas

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundary Value Problems
  • Cartesian Coordinates
  • Climate Change
  • Coefficients
  • Differential Equations
  • Diffusion
  • Energy
  • Equations
  • Finite Element Analysis
  • Heat Energy
  • Heat Transfer
  • Kinetic Energy
  • Materials
  • Mechanics
  • Numerical Analysis
  • Stress Strain Relations
  • Thermal Diffusion

Readers

  • Calculus or Mathematical Analysis
  • Materials Science (Mechanical Engineering).
  • Thermal Physics or Thermal Science.