elastic plate, stringers, periodic system of slots, contact of slots faces, contact stresses.

A plate with circular hole from that is started rectilinear slit of variable width comparable to elastic deformation is considered. The plate is elastic and supported by stringers.  The case of the slit faces contact on a certain part is investigated. Determination of parameters  characterizing the closure of variable width slit is reduced to solution of a singular integral  equation. The singular integral equation using the algebraization procedure is reduced to finit  nonlinear algebraic equations system, solving by method of successive approximations. From the  solution of the algebraic system the contact stresses and the size of the slit contact zone are found.

Mir-Salim-zada Minavar e-mail: minavar.mirsalimzade@imm.az, Candidate Sci. Phys. & Math.,     Ass. Professor, Institute of Mathematics and Mechanics of NAS of Azerbaijan, Baku, Azerbaijan