Stress-Intensity Factors Along Three-Dimensional Elliptical Crack Fronts

The objective of the present investigation is to determine the mode I stress-intensity factors along two symmetric surface cracks emanating from a centrally located hole in a rectangular plate (the so-called Round Robin Problem) using the domain integral method. In order to validate the present three-dimensional domain integral implementation, two comparisons were made with benchmark solutions. The authors first considered the problem of an elliptical crack embedded in a rectangular plate. For plate dimensions much greater than the largest characteristic dimension of the elliptical crack, the authors compared the present finite element results with the solution of Irwin (1962) for an elliptical crack embedded in an infinitely extended solid. Next, the authors considered the problem of a quarter-elliptical comer crack in a rectangular plate and compared the results with those of Newman and Raju (1983). Excellent agreement was obtained for both benchmark comparisons.

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  • Corporate Authors:

    University of New Hampshire, Durham

    Department of Mechanical Engineering
    Durham, NH  United States  03824

    Northwestern University, Evanston

    Department of Civil Engineering
    2145 Sheridan Road
    Evanston, IL  United States  60208

    Federal Aviation Administration

    Office of Aviation Research
    800 Independence Avenue, SW
    Washington, DC  United States  20591
  • Authors:
    • Gosz, M
    • Moran, B
  • Publication Date: 1998-5


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Bibliography; Figures; Tables;
  • Pagination: 16p

Subject/Index Terms

Filing Info

  • Accession Number: 01674918
  • Record Type: Publication
  • Report/Paper Numbers: DOT/FAA/AR-96/97
  • Created Date: Jun 28 2018 12:44PM