On solving the problem of contact problems with deformable stamp

Authors

  • Evdokimova O.V. Kuban State University, Krasnodar, Российская Федерация ORCID 0000-0003-1283-3870
  • Mukhin A.S. Kuban State University, Krasnodar, Российская Федерация ORCID 0000-0001-8935-0151
  • Uafa S.B. Kuban State University, Krasnodar, Российская Федерация
  • Bushueva O.A. Kuban State University, Krasnodar, Российская Федерация

UDC

539.3

DOI:

https://doi.org/10.31429/vestnik-20-3-42-49

Abstract

In this paper, for the first time, an approach is proposed that allows not only to construct exact solutions to contact problems with a deformable stamp for some types of non-classical domains, but also to explicitly obtain important relations describing new phenomena arising in these problems. By applying the block element method to the study of contact problems for a multilayer medium on the effect of a classical, semi-infinite, stamp and non-classical stamps in the form of a strip and a quarter plane, it was possible to obtain important properties not previously described. These include the following features and results. 1. The contact problem for a deformable stamp is available for solution only after the contact problem for an absolutely rigid stamp has been solved. 2. For the first time, exact solutions have been constructed for the cases of absolutely rigid stamps and deformable stamps of these shapes, the material of which is described by the Helmholtz equation. 3. In cases of dynamic tasks on harmonic effects on stamps, isolated resonances do not occur in contact problems with absolutely rigid stamps. Isolated resonances, first predicted by academician I.I. Vorovich, are present in contact problems with a deformable stamp. 4. The use of the block element method for solving contact problems allows, depending on the shape of the stamp, to obtain an explicit or integral dispersion equation describing resonant frequencies. 5. By the block element method using solutions of a system of Wiener-Hopf integral equations and a universal (fractal) modeling method can be used to solve the considered contact problems with deformable stamps consisting of materials of complex rheologies.

Keywords:

contact problem, block element, deformable stamp, fractals, rheology, Lame equations, Wiener-Hopf equations

Acknowledgement

The work was supported by the Russian Science Foundation (project no. 22-21-00129).

Author Infos

Olga V. Evdokimova

д-р физ.-мат. наук, главный научный сотрудник научно-исследовательской части Кубанского государственного университета

e-mail: evdokimova.olga@mail.ru

Aleksey S. Mukhin

канд. физ.-мат. наук, старший научный сотрудник Научно-исследовательской части Кубанского государственного университета

e-mail: muhin@mail.kubsu.ru

Samir B. Uafa

младший научный сотрудник Кубанского государственного университета

e-mail: uafa70@mail.ru

Olga A. Bushueva

аспирантка факультета компьютерных технологий и математики Кубанского государственного университета

e-mail: olyabushuyeva@gmail.com

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Issue

Section

Mechanics

Pages

42-49

Submitted

2023-08-16

Published

2023-09-29

How to Cite

Evdokimova O.V., Mukhin A.S., Uafa S.B., Bushueva O.A. On solving the problem of contact problems with deformable stamp. Ecological Bulletin of Research Centers of the Black Sea Economic Cooperation, 2023, vol. 20, no. 3, pp. 42-49. DOI: https://doi.org/10.31429/vestnik-20-3-42-49 (In Russian)