On Thermal Contact of Two Axially Symmetric Elastic Solids

A contact problem of two elastic convex and axially symmetric solids heated (or cooled) to temperatures of different values is considered. Pertinent formulae have been derived for relations between the contact pressure, geometrical characteristics of the solids and distributions of heat flux over the contacting region. We have analysed: 1. The problem of the loss of the contact between two solids pressed together with active heat fluxes. We discuss the cases for which the contact of the axially symmetric solids can take the form of a circle, or an annulus. 2. The problem of a paradox when the mathematically well posed contact problem of thermoelasticity leads to a physically unacceptable solution with a region of overlapping materials. Here we discuss a generalization of the cooled sphere paradox. The heat flux functions are continuously differentiable, of constant sign. The conditions have been derived for the cases when the paradox can be avoided.     

On stress analysis of load for microperiodic composite half-plane with slant lamination

Meccanica - The paper deals with the plane problem of normal and tangential load for microperiodic composite with slant lamination. The boundary condition was considered as a normal and tangential...     

Thermoelastic instability in contact problems for rotating solids with heat generation

In this paper we discuss certain cases of thermal instability in axisymmetric contact problems with heat generation and heat exchange. Two solids of revolution pressed against each other are considered. One of the solids rotates about its symmetry axis. A characteristic feature of the problem is that the distance between the centers of gravity of the solids cannot be greater than a certain value Published in Prikladnaya Mekhanika, Vol. 43, No. 1, pp. 134–144, January 2007.     

On displacements and stresses in a semi-infinite laminated layer: comparative results

This paper deals with some comparison results for displacements and stresses in a periodically stratified elastic semi-infinite layer determined within the framework of two approaches: (1) based on the homogenized model with microlocal parameters [Woźniak (1987) Int J Eng Sci 25: 483–499; Woźniak (1987) Bull Ac Pol Tech Sci 35: 143–151]; (2) obtained directly from the theory of elasticity. A body is assumed to be composed of n elastic two-component periodically repeated laminae. The perfect mechanical bonding between the layers is assumed. The normal displacements and zero shear stresses on the boundary being a cross-section of the composite component are taken into account. The lateral boundary surfaces are assumed to be rigid fixed. The obtained results from the two approaches are compared and presented in the form of figures.     

Author Index, Volume 63 (2001)

Authors Index

Author Index, Volume 63 (2001)