Experimental Mechanics

, Volume 30, Issue 3, pp 281–285

An experimental study of stress singularities at a sharp corner in a contact problem

  • E. C. Miniatt
  • A. M. Waas
  • W. J. Anderson
Article

DOI: 10.1007/BF02322823

Cite this article as:
Miniatt, E.C., Waas, A.M. & Anderson, W.J. Experimental Mechanics (1990) 30: 281. doi:10.1007/BF02322823

Abstract

The photoelastic method was used to investigate the nature of the local stress field at a sharp corner of a wedge that was compressed against a larger body. Planar wedge specimens made of photoelastic material were compressed against a half plane (larger body) of identical material at various load levels. Several wedge angles were studied. The nature of the singular stress field postulated by linear elastic analysis was verified and the strength of the singularity was obtained by plotting the variation of fringe order as a function of radial distance from the sharp corner on a logarithmic scale. The experimental results were found to be in good agreement with the theoretical predictions. The effect of interface friction and the effect of rounding off the sharp edge are brietly discussed.

Copyright information

© Society for Experimental Mechanics, Inc. 1990

Authors and Affiliations

  • E. C. Miniatt
    • 1
  • A. M. Waas
    • 1
  • W. J. Anderson
    • 1
  1. 1.Department of Aerospace EngineeringUniversity of MichiganAnn Arbor