Use of Reissner's Variational Principle in Finite Element Analysis of Crack Problems.

Abstract

For the purpose of accurately estimating linear elastic fracture parameters by finite element method, the use of Reissner's variational principle as a basis is investigated. Results of two-dimensional analyses performed on three-point bend, compact tension, and ring tension geometries compare well with other solutions available in the literature. Results of three-dimensional analyses of three-point bend and ring geometries are also presented. The method appears to be particularly useful in studying through the thickness variation or Mode I stress intensity factors. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1980
Accession Number
ADA094901

Entities

People

  • Jalees Ahmad

Organizations

  • Universal Energy Systems

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Air Force
  • Air Force Facilities
  • Crack Tips
  • Equations
  • Finite Element Analysis
  • Fracture (Mechanics)
  • Geometry
  • Government Procurement
  • Materials
  • Materials Laboratories
  • Mechanics
  • Plastic Explosives
  • Stress Intensity Factors
  • Three Dimensional
  • Two Dimensional
  • Variational Principles

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Structural Health Monitoring of Composite Structures.