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JOURNALS // Prikladnaya Mekhanika i Tekhnicheskaya Fizika // Archive

Prikl. Mekh. Tekh. Fiz., 2021 Volume 62, Issue 5, Pages 38–44 (Mi pmtf107)

Compensating role self-balanced stress fields in constructing nonsingular solutions using a non-Euclidean model of a continuous medium for an incompressible sphere

M. A. Guzevab, W. Liuc, Ch. Qic, E. P. Riabokonb

a Institute of Applied Mathematics, Far Eastern Branch, Russian Academy of Sciences, 690041, Vladivostok, Russia
b Perm National Research Polytechnic University, 614990, Perm, Russia
c Beijing University of Civil Engineering and Architecture, Beijing, 100044, China

Abstract: A self-balanced stress field for an incompressible sphere is constructed based on a non-Euclidean model of a continuous medium. The total stress field is presented as the sum of the elastic and self-balanced fields. The requirement that there are no singular contributions to the stress field leads to the fact that the coefficients at the singularities of the elastic and self-balanced stress fields can be related by a linear transformation, ensuring the removal of singularities. The compensating role of self-balanced stress fields allows one to construct a nonsingular equilibrium stress field for a spherically symmetric state of a continuous medium.

Keywords: inconsistency condition, non-Euclidean continuous model, singularities, self-balanced stress field.

UDC: 517.9

Received: 16.06.2021
Revised: 16.06.2021
Accepted: 28.06.2021

DOI: 10.15372/PMTF20210504


 English version:
Journal of Applied Mechanics and Technical Physics, 2021, 62:5, 736–741

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© Steklov Math. Inst. of RAS, 2024