Method of pure shear problem solving for stochastically inhomogeneous plane in a steady-state creep

The analytical method for nonlinear problem of steady-state creep solving for pure shear of stochastically inhomogeneous plane on the basis of the second approximation method of small parameter was developed. It is supposed that elastic deformations are insignificant and they can be neglected. Stoch...

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Main Authors: Nikolay N Popov, Olga O Chernova
Format: Article
Language:English
Published: Samara State Technical University 2012-12-01
Series:Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki
Subjects:
Online Access:https://journals.eco-vector.com/1991-8615/article/viewFile/20814/17073
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author Nikolay N Popov
Olga O Chernova
author_facet Nikolay N Popov
Olga O Chernova
author_sort Nikolay N Popov
collection DOAJ
description The analytical method for nonlinear problem of steady-state creep solving for pure shear of stochastically inhomogeneous plane on the basis of the second approximation method of small parameter was developed. It is supposed that elastic deformations are insignificant and they can be neglected. Stochasticity was introduced into the determinative creep equation, which was taken in accordance with the nonlinear theory of viscous flow, through a homogeneous random function of coordinates. By using the decomposition technique of stress tensor components in a small parameter to the members of the second order of smallness, partial differential system of the first and the second approximation of stress was obtained. This system was solved by the introduction of the stress function. The mathematical expectation and variances of the random stress field were calculated. The analysis of the results in the first and second approximations was obtained.
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spelling doaj.art-8ff58e4be28d4dbd90f926f5a90b4a8d2022-12-22T02:02:57ZengSamara State Technical UniversityVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki1991-86152310-70812012-12-011649710518231Method of pure shear problem solving for stochastically inhomogeneous plane in a steady-state creepNikolay N Popov0Olga O Chernova1Samara State Technical UniversitySamara State Technical UniversityThe analytical method for nonlinear problem of steady-state creep solving for pure shear of stochastically inhomogeneous plane on the basis of the second approximation method of small parameter was developed. It is supposed that elastic deformations are insignificant and they can be neglected. Stochasticity was introduced into the determinative creep equation, which was taken in accordance with the nonlinear theory of viscous flow, through a homogeneous random function of coordinates. By using the decomposition technique of stress tensor components in a small parameter to the members of the second order of smallness, partial differential system of the first and the second approximation of stress was obtained. This system was solved by the introduction of the stress function. The mathematical expectation and variances of the random stress field were calculated. The analysis of the results in the first and second approximations was obtained.https://journals.eco-vector.com/1991-8615/article/viewFile/20814/17073pure shearsmall parameter methodsteady-state creepsecond approximationstochastic problem
spellingShingle Nikolay N Popov
Olga O Chernova
Method of pure shear problem solving for stochastically inhomogeneous plane in a steady-state creep
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki
pure shear
small parameter method
steady-state creep
second approximation
stochastic problem
title Method of pure shear problem solving for stochastically inhomogeneous plane in a steady-state creep
title_full Method of pure shear problem solving for stochastically inhomogeneous plane in a steady-state creep
title_fullStr Method of pure shear problem solving for stochastically inhomogeneous plane in a steady-state creep
title_full_unstemmed Method of pure shear problem solving for stochastically inhomogeneous plane in a steady-state creep
title_short Method of pure shear problem solving for stochastically inhomogeneous plane in a steady-state creep
title_sort method of pure shear problem solving for stochastically inhomogeneous plane in a steady state creep
topic pure shear
small parameter method
steady-state creep
second approximation
stochastic problem
url https://journals.eco-vector.com/1991-8615/article/viewFile/20814/17073
work_keys_str_mv AT nikolaynpopov methodofpureshearproblemsolvingforstochasticallyinhomogeneousplaneinasteadystatecreep
AT olgaochernova methodofpureshearproblemsolvingforstochasticallyinhomogeneousplaneinasteadystatecreep