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Stress and fracture analysis in periodic contact problem for coated bodies
Author(s) -
GORYACHEVA I. G.,
TORSKAYA E. V.
Publication year - 2003
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1046/j.1460-2695.2003.00580.x
Subject(s) - materials science , fracture (geology) , superposition principle , contact mechanics , stress (linguistics) , boundary value problem , composite material , surface finish , coating , adhesion , substrate (aquarium) , layer (electronics) , stress intensity factor , fracture mechanics , structural engineering , mathematical analysis , mathematics , finite element method , engineering , geology , linguistics , philosophy , oceanography
The periodic contact problem for the system of dies and two‐layered elastic foundation is considered. The imperfect adhesion between the layer and the substrate is taken into account by the boundary conditions at the interface. The solution of the problem is based on Hankel transform and the methods of localisation and superposition. The results are used to evaluate internal stresses in coated bodies which are in contact with rough surface and to analyse the influence of mechanical and geometrical characteristics of the coatings and the roughness parameters on the maximum stress value and its location, and on the types of coating fracture.