Author(s)

E. Dragoni & A. Strozzi

Abstract

Mechanical analysis of a flat, deformable layer underlain by a rigid foundation and indented by a paraboloidal punch E. Dragoni", A. Strozzi^ "DIEM Department, Engineering Faculty, Bologna University, Bologna, Italy ^Istituto di Fisica Tecnica, Engineering Faculty, Udine University, Udine, Italy ABSTRACT The deflections are analytically studied in a flat, deformable layer, firmly anchored to a rigid substrate, and frictionlessly indented by a rigid paraboloidal punch, having in mind the design of hip replacements possessing elastomeric layers. An existing perturbation solution of differential character, developed for a layer subject to plane strain conditions and indented by a rigid cylinder, and valid for high contact widths, is here extended to the analogous axisymmetric problem of a layer compressed by a rigid paraboloidal punch approximating a spherical indenter. Perturbed solutions up to the second order are obtained, and the contact pressur

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