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Investigation of stress concentration factor for finite-width orthotropic rectangular plates with a circular opening using three-dimensional finite element model
Bakhshandeh, Kambiz (Author), Rajabi, Iraj (Author), Rahimi, Farhad (Author)

URLURL - Presentation file, Visit http://www.dlib.si/details/URN:NBN:SI:doc-OL96ST8Q This link opens in a new window

Abstract
V prispevku je predstavljena raziskava teoretičnega faktorja koncentracije napetosti pravokotnih plosč s končno širino ter središčno okroglo odprtino z uporabo trirazsežne analize končnih elementov. V prvem delu smo, s primerjavo analitičnih enačb za neskončne ortotropne in izotropne plosče, preverili model končnih elementov. S preverjenim modelom smo izračunali faktor koncentracije napetosti za otrhotropic pravokotne plošče s središčno okroglo odprtino v odvisnosti od nespremenljive natezne napetosti. Raziskali smo vpliv razmerja polmera odprtine in širine plošče za različne ortotropne plošče z različnimi ortotropnimi razmerji. Raziskava je pokazala, da je točnost analitične metode odvisna od ortotropnega razmerja in razmerja a/W. Pri velikem razmerju polmera odprtine in sirine plosèe, ima ortotropno razmerje le majhnen vpliv na faktor koncentracije napetosti.

Language:English
Keywords:stress concentration factor, finite element methods, orthotropic plates
Work type:Not categorized (r6)
Tipology:1.03 - Short Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Year:2008
Publisher:= Association of Mechanical Engineers and Technicians of Slovenia et al.
Number of pages:str. 140-147
Numbering:Letn. 54, št. 2
UDC:539.319:624.073
ISSN on article:0039-2480
COBISS.SI-ID:10500891 Link is opened in a new window
Views:554
Downloads:143
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Record is a part of a journal

Title:Strojniški vestnik
Shortened title:Stroj. vestn.
Publisher:Zveza strojnih inženirjev in tehnikov Slovenije [et al.], = Association of Mechanical Engineers and Technicians of Slovenia [et al.]
ISSN:0039-2480
COBISS.SI-ID:762116 This link opens in a new window

Secondary language

Language:Slovenian
Title:Raziskave faktorja koncentracije napetosti ortotropnih pravokotnih plošč s končno širino ter krožno odprtino z uporabo trirazsežnega modela končnih elementov
Abstract:
In this paper, theoretical stress concentration factor for finite-width orthotropic plates with centered circular opening is investigated by use of three-dimensional finite element analysis. In the first part, the finite element (FE) model is validated by comparison analytic equations for infinite orthotropic and isotropic plates. With verified model, the stress concentration factor is calculated for orthotropic rectangular plates with centered circular opening subject to uniform tension. The effect of opening radius to width of plate ratio for various orthotropic plates with different orthotropy ratia is investigated. This study shows the accuracy of analytical method is dependent on orthotropy ratio and a/W ratio. In high opening radius to plate width ratio, the orthotropy ratio has a little effect on stress concentration factor.

Keywords:faktor koncentracije napetosti, metode končnih elementov, ortotropne plošče

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