On an invariance principle for unilateral contact at a bimaterial elastic interface |
| |
Authors: | A.P.S. Selvadurai |
| |
Affiliation: | Department of Civil Engineering and Applied Mechanics, McGill University, 817 Sherbrooke Street West, Montreal, QC, Canada H3A 2K6 |
| |
Abstract: | This paper examines the axisymmetric elastostatic problem related to the unilateral receding contact at a pre-compressed smooth bimaterial elastic interface. The separation at the interface is caused by the action of axisymmetric stress fields of unequal magnitude, which are applied at any location of the separate halfspace regions. The analysis of the problem focuses on the determination of the zone of separation as a function of the pre-compression, the magnitudes and locations of the axisymmetric stress fields inducing the separation, and the elasticity characteristics of the halfspace regions. It is found that the radius of the separation zone can be evaluated in explicit form. In the particular instance when the loadings applied at the surface of the halfspace regions are equal in magnitude and distribution, the analysis reveals that the radius of the separation zone is independent of the elasticity properties of the halfspace regions and can be evaluated in exact closed form. |
| |
Keywords: | Invariance principle Unilateral contact Bimaterial contact Separation at pre-compressed interface Contact problem Contact of elastic halfspaces Separation by Boussinesq forces |
本文献已被 ScienceDirect 等数据库收录! |
|