Original scientific paper

https://doi.org/10.17559/TV-20220603080026

Square Openings as Sources of Stress Concentration in Parts of Machines and Devices

Mladen Radojković ; University of Pristina, Faculty of Technical Sciences, Kosovska Mitrovica, Knjaza Milosa 7, 38220 Kosovska Mitrovica
Blaža Stojanović ; University of Kragujevac, Faculty of Engineering, Department for Mechanical Constructions and Mechanization, Kragujevac 34000, Sestre Janjić 6, Serbia
Saša Milojević ; University of Kragujevac, Faculty of Engineering, Department for Motor Vehicles and Engines, Kragujevac 34000, Sestre Janjić 6, Serbia
Dejan Marić ; University of Slavonski Brod, Mechanical Engineering Faculty in Slavonski Brod, Trg Ivane Brlić Mažuranić 2, HR-35000 Slavonski Brod, Croatia
Slobodan Savić ; University of Kragujevac, Faculty of Engineering, Department for Applied Mechanics and Automatic Control, Serbia, Kragujevac 34000, Sestre Janjić 6, Serbia
Aleksandar Skulić orcid.org/0000-0002-5332-3087 ; University of Kragujevac, Faculty of Engineering, Department for Mechanical Constructions and Mechanization, Kragujevac 34000, Sestre Janjić 6, Serbia
Božidar Krstić ; University of Kragujevac, Faculty of Engineering, Department for Motor Vehicles and Engines, Serbia, Kragujevac 34000, Sestre Janjić 6, Serbia

Abstract

In this paper the impact of square opening, as a source of stress concentration, on the distribution of stress in parts of machines and devices is considered. The fact is that these forms of the openings occur less in practice, but the knowledge of the influence of the square opening on the stress distribution, from the aspect of its size, the radius of the angles curvature and positions in relation to the attack lines of the external load, is very important for those who are dealing with designing and constructing parts that contain such shapes of openings. Therefore, the aim of this paper is to analyse the influence of the position and radius of the angles curvature of the square opening on the stress distribution in parts of machines and devices, made of isotropic materials, because these materials are most often used and common in engineering practice. In order to obtain the results of the stress distribution, analytical and numerical methods were used in this paper.

Keywords

curvature radius; machines and devices; square opening; stress concentration; stress distribution

Hrčak ID:

294359

URI

https://hrcak.srce.hr/294359

Publication date:

26.2.2023.

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