Abstract
Paper concerns the Boussinesq and Reissner-Sagoci contact problems for a rigid punch in contact with the plane face of an isotropic elastic half-space over a circular annulusb≤r≤a. It is shown that a simple combination of the interior and exterior Dirichlet and Neumann solutions for a circle, when expressed in terms of oblate spheriodal coordinates, yields extremely accurate approximate solutions provided that 0≤b/a≤0.8.
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Gladwell, G.M.L., Gupta, O.P. On the approximate solution of elastic contact problems for a circular annulus. J Elasticity 9, 335–348 (1979). https://doi.org/10.1007/BF00044612
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DOI: https://doi.org/10.1007/BF00044612