OPTIMUM HOLE SHAPES IN FINITE PLATES UNDER UNIAXIAL LOAD

This paper presents optimized hole shapes in plates of finite width subjected to uniaxial load for a large range of hole to plate widths (D/W) ratios. The stress concentration factor for the optimized holes decreased by as much as 44% when compared to circular holes. Simulataneously, the area covered by the optimized hole increased by as much as 26% compared to the circular hole. Coefficients of efficiency between 0.91 and 0.96 are achieved. The geometries of the optimized holes for the D/W ratios considered are presented in a form suitable for use by designers. It is also suggested that the developed geometries may be applicable to cases of rectangular holes and to the tip of a crack. This information may be of interest in fracture mechanics.

  • Corporate Authors:

    Oakland University

    School of Engineering
    Rochester, MI  USA  48063
  • Authors:
    • Durelli, A J
    • Rajaiah, K
  • Publication Date: 1979-2

Media Info

  • Features: References;
  • Pagination: 34 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00188808
  • Record Type: Publication
  • Source Agency: Oakland University
  • Report/Paper Numbers: 50
  • Contract Numbers: N00014-76-C-0487, ENG77-07974
  • Files: TRIS
  • Created Date: Mar 14 1979 12:00AM