Critical Review of the Generalised Frost-Dugdale Approach to Crack Growth in F/A-18 Hornet Structural Materials

Abstract

The F/A-18 Hornet is one of the ADF's premier defence assets. It utilises a highly optimised metallic structure to assist in achieving its performance objectives. Thus the structure (particularly the fracture critical wing attachment bulkheads or the "centre barrel") is uniformly highly stressed and thus susceptible to fatigue cracking. In order to help assess the fatigue critical regions of the aircraft it is essential that the tools used to predict/assess fatigue crack growth are consistent with the known fatigue behaviour of the F/A-18 materials. This report provides a critical review of the current state of knowledge with respect to the use of the Generalised Frost-Dugdale model for assessing fatigue crack growth in F/A-18 structural metallic materials and evaluates the need for further research in this area.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2010
Accession Number
ADA523416

Entities

People

  • L. Molent
  • R. Jason Jones

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Airframes
  • Aluminum Alloys
  • Computer Programs
  • Cracks
  • Engineering
  • Experimental Data
  • Ferrium
  • Fighter Aircraft
  • Fracture (Mechanics)
  • Materials
  • Materials Science
  • Materials Testing
  • Mechanics
  • Structural Mechanics
  • Test Methods
  • Vehicles

Fields of Study

  • Materials science

Readers

  • Manufacturing Engineering.
  • Materials Science (Mechanical Engineering).
  • Naval Engineering and Maritime Security