An experimental study of stress singularities at a sharp corner in a contact problem
Rent the article at a discountRent now
* Final gross prices may vary according to local VAT.Get Access
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.
- Dundurs, J. andLee, M.-S., “Stress Concentration at a Sharp Edge in Contact Problems,”J. Elasticity,2,109 (1972).
- Gdoutos, E. andTheocaris, P.S., “Stress Concentration at the Apex of a Plane Indentor Acting on an Elastic Half Plane,”J. Appl. Mech.,36,650 (1975).
- Comninou, M., “Stress Singularity at a Sharp Edge in Contact Problems with Friction,”J. Appl. Math and Phys. (ZAMP),27,493 (1976).
- Williams, M.L., “Stress Singularities from Various Boundary Conditions in Angular Corners of Plates in Extension,”J. Appl. Mech.,19,526 (1952).
- Bogy, D.B., “Two Edge-bonded Elastic Wedges of Different Materials and Wedge Angles Under Surface Tractions,”J. Appl. Mech.,38,377 (1971).
- An experimental study of stress singularities at a sharp corner in a contact problem
Volume 30, Issue 3 , pp 281-285
- Cover Date
- Print ISSN
- Online ISSN
- Kluwer Academic Publishers
- Additional Links
- Industry Sectors