Finite Element Computer Program to Analyze Cracked Orthotropic Sheets.

Abstract

A finite-element computer program was developed to analyze a two-dimensional orthotropic sheet with through-the-thickness cracks and temperature gradient. The program includes special crack-tip elements that account for the singular stress fields associated with crack opening (Mode I) and crack sliding (Mode II) displacements at the crack tip. The program also includes a linear spring element and a constant-strain, triangular element. A number of problems for which closed-form solutions exist were analyzed to demonstrate the capabilities of the program. (MM)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1976
Accession Number
ADA305481

Entities

People

  • C. S. Chu
  • J. A. Aberson
  • J. M. Anderson
  • W. J. Batdorf

Organizations

  • Lockheed Martin

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Cartesian Coordinates
  • Composite Materials
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Crack Tips
  • Equations
  • Finite Element Analysis
  • Fracture (Mechanics)
  • Grids
  • Laminates
  • Materials
  • Materials Laboratories
  • Mechanics
  • Shear Pins
  • Temperature Gradients
  • Two Dimensional

Readers

  • Computer Science.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Materials Science (Mechanical Engineering).