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An experimental study of stress singularities at a sharp corner in a contact problem (1990)

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.. Peer Reviewed. http://deepblue.lib.umich.edu/bitstream/2027.42/43931/1/11340_2006_Article_BF02322823.pdf

Publication details

Download	, http://hdl.handle.net/2027.42/43931
Publisher	Kluwer Academic Publishers; Society for Experimental Mechanics, Inc. ; Springer Science+Business Media
Contributors	Department of Aerospace Engineering, University of Michigan, 48109-2140, Ann Arbor, MI, Department of Aerospace Engineering, University of Michigan, 48109-2140, Ann Arbor, MI, Department of Aerospace Engineering, University of Michigan, 48109-2140, Ann Arbor, MI, Ann Arbor
Repository	University of Michigan (United States)
Keywords	Engineering, Theoretical and Applied Mechanics, Engineering Fluid Dynamics, Mechanical Engineering, Engineering Design, Structural Mechanics, Characterization and Evaluation Materials, Engineering (General), Materials Science and Engineering, Engineering
Language	English