Výsledky vyhledávání - "Yu. S. Nayshtut"

Akademický článek

Buckling problems of thin elastic shells

Publikováno v: Компьютерные исследования и моделирование, Vol 10, Iss 6, Pp 775-787 (2018)

The article covers several mathematical problems relating to elastic stability of thin shells in view of inconsistencies that have been recently identified between the experimental data and the predictions based on the shallow- shell theory. It is hi

Externí odkaz: https://doaj.org/article/22d3ae01a3944c0c95b53fa30714c412

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Akademický článek

On the boundaries of optimally designed elastoplastic structures

Autor: Yu. S. Nayshtut

Publikováno v: Компьютерные исследования и моделирование, Vol 9, Iss 3, Pp 503-515 (2017)

This paper studies minimum volume elastoplastic bodies. One part of the boundary of every reviewed body is fixed to the same space points while stresses are set for the remaining part of the boundary surface (loaded surface). The shape of the loaded

Externí odkaz: https://doaj.org/article/ebb9ee7d54bd4603a094a4fa2947113b

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Akademický článek

Neumann's method to solve boundary problems of elastic thin shells

Autor: Yu. S. Nayshtut

Publikováno v: Компьютерные исследования и моделирование, Vol 7, Iss 6, Pp 1143-1153 (2015)

This paper studies possibilities to use Neumann's method to solve boundary problems of elastic thin shells. Variational statement of statical problems for shells allows examining the problems within the space of distributions. Convergence of the Neum

Externí odkaz: https://doaj.org/article/702d99c8de414b9690dd30ae8df410f8

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Akademický článek

Solids composed of thin plates

Autor: V. A. Grachev, Yu. S. Nayshtut

Publikováno v: Компьютерные исследования и моделирование, Vol 6, Iss 5, Pp 655-670 (2014)

The paper demonstrates a fractal system of thin plates connected with hinges. The system can be studied using the methods of mechanics of solids with internal degrees of freedom. The structure is deployable - initially it is close to a small diameter

Externí odkaz: https://doaj.org/article/a9f2cf00d92c4f7eb17a83d795c40086

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Akademický článek

Ultimate load theorems for rigid plastic solids with internal degrees of freedom and their application in continual lattice shells

Autor: V. A. Grachev, Yu. S. Nayshtut

Publikováno v: Компьютерные исследования и моделирование, Vol 5, Iss 3, Pp 423-432 (2013)

This paper studies solids with internal degrees of freedom using the method of Cartan moving hedron. Strain compatibility conditions are derived in the form of structure equations for manifolds. Constitutive relations are reviewed and ultimate load t

Externí odkaz: https://doaj.org/article/c89e48e6268743b19833d1b561df6853

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Akademický článek

Latticed deployable shells made of strips assembled from trapezoid plates

Autor: V. A. Grachev, Yu. S. Nayshtut

Publikováno v: Компьютерные исследования и моделирование, Vol 4, Iss 1, Pp 63-73 (2012)

This paper covers deployable systems assembled from a set of trapezium plates. The middles lines of the plates represent a plane curve in the original position of the package. It is proved that when the package of thin plates is unwrapped, a surface

Externí odkaz: https://doaj.org/article/91bd0ff8288d43a1930c83188eeec129

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Akademický článek

Continuum deployable shells made of thin plates

Autor: Yu. S. Nayshtut, V. A. Grachev

Publikováno v: Компьютерные исследования и моделирование, Vol 3, Iss 1, Pp 3-29 (2011)

This paper covers deployable systems assembled from trapezium plates. When the plate package is unwrapped, a net shell with six loop cells is formed. It is proved that additional degrees of freedom appear in case of certain correlation between the si

Externí odkaz: https://doaj.org/article/2858a9cfd2a64bc8b157c47f4c67747a

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