Finite Element Analysis of MB326H Macchi Wing Lower Spar Cap Fatigue Cracks

Abstract

A three dimensional finite element analysis of cracks in the MB326H Macchi wing lower spar cap is presented. The case of cracks emanating from the intersection of a wing attachment fitting bolt hole and a web attachment fastener hole at wing station Y900 is considered. Stress intensity factors for two proposed crack geometries and the residual strength of the ligament above the web attachment fastener hole in the spar cap flange are calculated. Cracking(Fracturing), Holes(Openings), Stress intensity factors, Finite element analysis Macchi MB326H aircraft.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1993
Accession Number
ADA277062

Entities

People

  • D. Rees

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Aluminum Alloys
  • Attachment
  • Bolts
  • Crack Tips
  • Cracks
  • Fasteners
  • Finite Element Analysis
  • Geometry
  • Materials
  • Spars
  • Stress Concentration
  • Stress Intensity Factors
  • Stress Strain Relations
  • Stresses
  • Tensile Stress
  • Three Dimensional

Fields of Study

  • Engineering

Readers

  • Materials Science
  • Materials Science (Mechanical Engineering).
  • Mechanical Engineering/Mechanics of Materials.