EQUILIBRIUM PLANAR CRACK WITH CONTOUR ANGULAR POINTS IN ELASTIC LAYER

The three - dimensional static problem of the elasticity theory on the elastic layer balance weakened by a flat rectangular crack is considered. The crack is located in the median la yer plane; it is su p ported open under the normal loading applied to its edges. The layer edges are under the smooth...

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Main Authors: Boris V. Sobol, Elena V. Rashidova, Ekaterina V. Borisova, Olga P. Reshetnikova
Format: Article
Language:Russian
Published: Don State Technical University 2012-09-01
Series:Advanced Engineering Research
Subjects:
Online Access:https://www.vestnik-donstu.ru/jour/article/view/607
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author Boris V. Sobol
Elena V. Rashidova
Ekaterina V. Borisova
Olga P. Reshetnikova
author_facet Boris V. Sobol
Elena V. Rashidova
Ekaterina V. Borisova
Olga P. Reshetnikova
author_sort Boris V. Sobol
collection DOAJ
description The three - dimensional static problem of the elasticity theory on the elastic layer balance weakened by a flat rectangular crack is considered. The crack is located in the median la yer plane; it is su p ported open under the normal loading applied to its edges. The layer edges are under the smooth contact with two rigid bases. The problem is converted to the solution of the known singular i n tegro - differential equation concerning the cr ack opening function through the application of two - dimensional integral Fourier transformation to the equilibrium equation. The equation solution is constructed by the direct variational method. In neighborhood of the contour angular points, the sol ution completes the co n struction numerically, with regard for the early distinguished singularity. Values of the direct str ess intensity factor in neighborhood of the crack periphery are obtained. The solution behavioral features in neig hborhood of the contour r ectilinear sites and angular points are esta b lished.
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spelling doaj.art-2487f7bdcaf64097a1611c6426e2555b2023-03-13T07:31:27ZrusDon State Technical UniversityAdvanced Engineering Research2687-16532012-09-011256067600EQUILIBRIUM PLANAR CRACK WITH CONTOUR ANGULAR POINTS IN ELASTIC LAYERBoris V. Sobol0Elena V. Rashidova1Ekaterina V. Borisova2Olga P. Reshetnikova3Донской государственный технический университетДонской государственный технический университетДонской государственный технический университетДонской государственный технический университетThe three - dimensional static problem of the elasticity theory on the elastic layer balance weakened by a flat rectangular crack is considered. The crack is located in the median la yer plane; it is su p ported open under the normal loading applied to its edges. The layer edges are under the smooth contact with two rigid bases. The problem is converted to the solution of the known singular i n tegro - differential equation concerning the cr ack opening function through the application of two - dimensional integral Fourier transformation to the equilibrium equation. The equation solution is constructed by the direct variational method. In neighborhood of the contour angular points, the sol ution completes the co n struction numerically, with regard for the early distinguished singularity. Values of the direct str ess intensity factor in neighborhood of the crack periphery are obtained. The solution behavioral features in neig hborhood of the contour r ectilinear sites and angular points are esta b lished.https://www.vestnik-donstu.ru/jour/article/view/607трещинаконтуркоэффициент интенсивности напряженийслойсингулярное инт егральное уравнениевариационный методсиловой критерий разрушенияугловая точкаокрестностьотносительная толщина слоя
spellingShingle Boris V. Sobol
Elena V. Rashidova
Ekaterina V. Borisova
Olga P. Reshetnikova
EQUILIBRIUM PLANAR CRACK WITH CONTOUR ANGULAR POINTS IN ELASTIC LAYER
Advanced Engineering Research
трещина
контур
коэффициент интенсивности напряжений
слой
сингулярное инт егральное уравнение
вариационный метод
силовой критерий разрушения
угловая точка
окрестность
относительная толщина слоя
title EQUILIBRIUM PLANAR CRACK WITH CONTOUR ANGULAR POINTS IN ELASTIC LAYER
title_full EQUILIBRIUM PLANAR CRACK WITH CONTOUR ANGULAR POINTS IN ELASTIC LAYER
title_fullStr EQUILIBRIUM PLANAR CRACK WITH CONTOUR ANGULAR POINTS IN ELASTIC LAYER
title_full_unstemmed EQUILIBRIUM PLANAR CRACK WITH CONTOUR ANGULAR POINTS IN ELASTIC LAYER
title_short EQUILIBRIUM PLANAR CRACK WITH CONTOUR ANGULAR POINTS IN ELASTIC LAYER
title_sort equilibrium planar crack with contour angular points in elastic layer
topic трещина
контур
коэффициент интенсивности напряжений
слой
сингулярное инт егральное уравнение
вариационный метод
силовой критерий разрушения
угловая точка
окрестность
относительная толщина слоя
url https://www.vestnik-donstu.ru/jour/article/view/607
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AT elenavrashidova equilibriumplanarcrackwithcontourangularpointsinelasticlayer
AT ekaterinavborisova equilibriumplanarcrackwithcontourangularpointsinelasticlayer
AT olgapreshetnikova equilibriumplanarcrackwithcontourangularpointsinelasticlayer