Enhanced Thermal-Structural Analysis by Integrated Finite Elements

Abstract

An integrated finite element approach for enhanced thermal- structural analysis is presented. The approach employs a common nodal discretization and seeks improvements in the accuracy by new hierarchical finite element formulations for the thermal and structural analyses. The effectiveness of the integrated approach is assessed for four applications with two dimensional elements. Comparative solutions show the integrated approach provides improvements in the accuracy of temperatures, displacements and thermal stresses. The applications demonstrate the practical importance of having freedom to refine each analysis independently while maintaining a common discretization. The study demonstrates that the hierarchical finite element formulations offers significant potential for the development of a general method integrated thermal-structural analysis. Keywords include: Thermal- structural analysis, thermal-stress analysis, finite elements, integrated analyses, hierarchical finite elements.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1984
Accession Number
ADA151103

Entities

People

  • Earl A. Thornton
  • Pramote Dechaumphai

Organizations

  • Old Dominion University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Aeronautical Laboratories
  • Air Force
  • Engineering
  • Finite Element Analysis
  • Heat Transfer
  • Mechanical Engineering
  • Mechanics
  • Stress Analysis
  • Stress Strain Relations
  • Stresses
  • Structural Analysis
  • Structural Integrity
  • Structural Mechanics
  • Temperature Gradients
  • Thermal Stresses
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Integrated Circuit Design and Technology.
  • Neural Network Machine Learning.
  • Structural Dynamics.