RUS  ENG
Full version
JOURNALS // Mathematical notes of NEFU // Archive

Mathematical notes of NEFU, 2021 Volume 28, Issue 2, Pages 16–33 (Mi svfu315)

Mathematics

Optimal location of a rigid inclusion for an equilibrium problem describing Kirchhoff–Love plate with nonpenetration conditions for known configurations of plate edges

N. P. Lazareva, E. F. Sharina, G. M. Semenovab

a North-Eastern Federal University named after M. K. Ammosov
b North-Eastern Federal University, Yakutsk Branch of the Regional Scientific and Educational Mathematical Center "Far Eastern Center of Mathematical Research", 48 Kulakovsky Street, Yakutsk 677000, Russia

Abstract: A nonlinear model describing equilibrium of a cracked plate with a volume rigid inclusion is studied. It is assumed that under the action of certain given loads, plates have deformations with a certain predetermined configuration of edges near the crack. On the crack curve we impose a nonlinear boundary condition as a system of inequalities and an equality describing the nonpenetration of the opposite crack faces. For a family of variational problems, we study the dependence of their solutions on the location of the inclusion. We formulate an optimal control problem with a cost functional defined by an arbitrary continuous functional on a suitable Sobolev space. For this problem, the location parameter of the inclusion serves as a control parameter. We prove continuous dependence of the solutions on the location parameter and the existence of a solution to the optimal control problem.

Keywords: variational inequality, crack, nonpenetration conditions, optimal control problem, rigid inclusion.

UDC: 517.97

Received: 12.03.2021
Revised: 19.05.2021
Accepted: 26.05.2021

DOI: 10.25587/SVFU.2021.49.33.002



Bibliographic databases:


© Steklov Math. Inst. of RAS, 2024