Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Valentin A. Gorodtsov"'
Publikováno v:
Symmetry, Vol 15, Iss 3, p 685 (2023)
An analytical analysis of the problem of the longitudinal tension of two-layered tubes with walls made of tetragonal crystals was carried out together with numerical calculations of the effective Young’s moduli and Poisson’s ratios of the tubes,
Externí odkaz:
https://doaj.org/article/4db28a749b66465181c81543d6e2a30c
Publikováno v:
Crystals, Vol 11, Iss 8, p 863 (2021)
The extreme values of Young’s modulus for rhombic (orthorhombic) crystals using the necessary and sufficient conditions for the extremum of the function of two variables are analyzed herein. Seven stationary expressions of Young’s modulus are obt
Externí odkaz:
https://doaj.org/article/ecccea08dc104b5dbef2b7cc19cbc21e
Stretching of chiral tubes obtained by rolling-up plates of cubic crystals with various orientations
Publikováno v:
Journal of Mechanics of Materials and Structures. 16:139-157
Publikováno v:
Physical Mesomechanics. 24:464-474
The study analyzes the elastic properties of chiral metallic nanotubes formed by rolling up thin crystal plates with the [011] and [111] orientations within two frameworks of anisotropic elasticity and molecular statics. Iron, copper and aluminum nan
Publikováno v:
Physical Mesomechanics. 24:146-154
In the framework of the theory of anisotropic elasticity, a theoretical analysis of the out-of-plane extension of thin two-layered plates of hexagonal crystals is carried out. The six-fold axes of all pairs of crystals are assumed to be perpendicular
Publikováno v:
Physical Mesomechanics. 23:477-486
The work studies the mechanical properties of chiral metallic nanotubes by the molecular statics method. The atomic structure of nanotubes was obtained by rolling up thin nanoplates from cubic crystals of copper, iron, aluminum, and cobalt with the (
Publikováno v:
Mechanics of Solids. 55:461-474
The article provides a brief overview of studies on crystalline materials with negative Poisson’s ratio (crystalline auxetics) with cubic anisotropy. It has been demonstrated that 1/4 part of all cubic crystals has auxetic properties. Even more aux
Publikováno v:
Physical Mesomechanics. 22:261-268
The paper provides a theoretical analysis of axially stretched rectangular thin plates composed of two differently oriented layers of cubic crystals. In one layer, the crystal has its principal crystallographic orientations parallel to the plate edge
Publikováno v:
Mechanics of Solids. 54:514-522
Previously, the authors proposed a model of surface elasticity, in which the internal boundary was considered as a thin structured layer endowed with its own elasticity. The transition to the limit of an infinitely thin boundary was carried out in tw
Publikováno v:
Mechanics of Materials. 134:1-8
The variability of Young’s modulus and Poisson’s ratio for hexagonal crystals was studied. Expressions for three stationary values of Young’s modulus and eight stationary values of Poisson’s ratio were obtained. Numerical analysis of the extr