Reduction of contact stress by use of relief notches |
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| Authors: | M Bijak-Zochowski A M Waas W J Anderson C E Miniatt |
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| Institution: | (1) Teh Technical University of Warsaw, Poland;(2) The Department of Aerospace Engineering, The University of Michigan, Patterson Place, 48109-2140 Ann Arbor, MI |
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| Abstract: | 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. |
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