论文信息 - Reduction of contact stress by use of relief notches

Reduction of contact stress by use of relief notches

The photoelastic method is used to investigate the possibility of relieving the large local stresses that develop in the corners of a right angled indenter compressing a semi-infinite body by inducing geometric changes to the indenter/semi-infinite body configuration. It is shown that a circular notch cut along the free edges of the indenter can totally eliminate the large corner stresses. The notch, if placed along the interface edge of the half plane, can reduce the stress concentration, but never eliminate it. The results obtained have wide practical application.

W. J. Anderson | M. Bijak-Zochowski | A. M. Waas | C. E. Miniatt

[1] An experimental study of stress singularities at a sharp corner in a contact problem , 1990 .

[2] John Dundurs,et al. Stress concentration at a sharp edge in contact problems , 1972 .

[3] David B. Bogy,et al. Two Edge-Bonded Elastic Wedges of Different Materials and Wedge Angles Under Surface Tractions , 1971 .

[4] R. Peterson,et al. Stress Concentration Factors , 1974 .

[5] M. Williams,et al. Stress Singularities Resulting From Various Boundary Conditions in Angular Corners of Plates in Extension , 1952 .

[6] M. Comninou. Stress singularity at a sharp edge in contact problems with friction , 1976 .