Mater.Phys.Mech.(MPM)
No 1, Vol. 36, 2018, pages 67-75

ON THE BEHAVIOR OF MATERIALS WITH DEFECTIVE COATING UNDER
DIFFERENT CONTACT CONDITIONS

V.A. Babeshko, O.V. Evdokimova, O.M. Babeshko, M.V. Zaretskaia,
E.M. Gorshkova, A.S. Mukhin, I.B. Gladskoi

Abstract

On a multi-layered base described by the Lam. equations there is a defective coating in the form of Kirchhoff plates. Defects of two types divide the covering into two half-planes with parallel ends, which, in the first case, are spaced apart from each other by a finite distance, and in the second case the distance is absent. All types of contact of coatings with a base are studied: in the absence of friction, in the presence of shearing stresses, with complete cohesion of the coatings and the base. The stress concentration in the end zone is investigated. The blockelement method is used, which allows for studying the boundary problems mathematically. A complete analysis of the stress concentration features in the problem is performed.

Keywords: block element; factorization; topology; integral and differential factorization methods; exterior forms; block structures; boundary problems; bodies with coverings; hidden defects

full paper (pdf, 800 Kb)