Fracture Mechanics Analysis of an Attachment Lug

Abstract

This report documents a finite-element analysis procedure for computation of Mode 1 and Mode 2 stress intensity factors associated with a sharp crack in an attachment lug detail. The procedure is a complete FORTRAN-4 program which generates and parametrically analyzes the lug, based on designer- oriented input data. The formulation of a special crack-containing element is reviewed and its performance is summarized. A detailed description of the lug analysis procedure covers the physical problem, modeling, program flow and options, input/output conventions, execution times and limitations which must be observed. Results from example analyses of some attachment lugs are presented.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1976
Accession Number
ADA021280

Entities

People

  • Oscar Orringer

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautics
  • Air Force
  • Attachment
  • Computational Science
  • Engineering
  • Ferrium
  • Finite Element Analysis
  • Laminates
  • Massachusetts
  • Materials
  • Mechanics
  • Metal Matrix Composites
  • Performance Tests
  • Plastic Explosives
  • Pressure Distribution
  • Stress Analysis
  • Stress Strain Relations

Readers

  • Computer Science.
  • Logistics and Supply Chain Management.
  • Materials Science (Mechanical Engineering).