Original scientific paper

https://doi.org/10.17559/TV-20131102132713

Stress distribution in an anisotropy plane field weakened by an elliptical hole

Vera Nikolić ; State University of Novi Pazar, Vuka Karadžića bb, 36300 Novi Pazar, Serbia
Ćemal Dolićanin ; State University of Novi Pazar, Vuka Karadžića bb, 36300 Novi Pazar, Serbia
Mladen Radojković ; High Technical School of Professional Studies Zvecan, Nušićeva 6, 38227 Zvečan, Serbia
Edin Dolićanin ; State University of Novi Pazar, Vuka Karadžića bb, 36300 Novi Pazar, Serbia

Abstract

In the paper, the influence of an elliptical hole onto stress condition of an anisotropic (orthotropic) one-axis strengthened panel exposed to static loading is considered. Holes in machine parts represent characteristic sources of stress concentration. The stress distribution around the holes, as the source of stress concentration, is significantly influenced not only by the size of a hole and its material but also by its form and position in relation to the course of action of an outer loading. The aim of this paper is the analysis of the elliptical hole influence, as the source of stress concentration, onto stress distribution. Although in practice the elliptical holes are not as common as the circular ones, it is known that the circular holes represent a special case of the elliptical ones, and all equalities being accomplished within elliptical holes are valid within the circular ones, when half-axes of an elliptical hole have been equalled. In this paper, only the parts from anisotropic (orthotropic) materials are considered, since in practice it has been shown that they can be excellent construction materials. The analytical and numerical methods are used for accomplishment of the stress distribution in a plane isotropic field weakened by holes.

Keywords

anisotropic (orthotropic) materials; elliptical hole; finite elements method; one-axis strengthened panel; stress; stress distribution

Hrčak ID:

138085

URI

https://hrcak.srce.hr/138085

Publication date:

22.4.2015.

Article data in other languages: croatian

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