Stress Intensity Factors and Crack Interaction in Adjacent Holes

Abstract

In this analytical investigation, stress intensity ;factors, K, are calculated for oblique part-elliptical through cracks nucleating and growing from an array of collinear holes subjected to remote tension, bending, and pin loading. The finite element method is used with ;model validation through comparisons to known stress concentration factors solutions. The three-dimensional virtual crack closure technique (3D VCCT) is used to calculate the new K solutions. This work was motivated by the need to predict fatigue crack growth in transport aircraft fuselage lap-splice skin joints. Fatigue crack growth of adjacent through cracks with oblique crack fronts can now be predicted using the results of this investigation.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2000
Accession Number
ADA380271

Entities

People

  • J. J. De Rijck
  • S. A. Fawaz

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Aircrafts
  • Airframes
  • Engineering
  • Finite Element Analysis
  • Fuselages
  • Geometry
  • Intensity
  • Materials
  • Mechanics
  • Stress Concentration
  • Stress Intensity Factors
  • Stresses
  • Three Dimensional
  • Transport Aircraft
  • Vehicles

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Structural Health Monitoring of Composite Structures.