Stress concentration factors in square and circular cross-sectioned bars with axial slots

Abstract

The stress concentration factors (SCFs) in the region of a slot, with semicircular ends, in square and circular cross-sectioned bars have been obtained using the ®nite element (FE) method. Results are presented for torsion, bending (in two different directions) and axial loading. The effects of the length and width of the slot on the magnitudes and positions of the SCFs were investigated; the overall dimensions of the bars were kept constant. The choice of appropriate nominal stresses for de®ning the SCFs was given careful consideration. The choice of nominal stress for the torsion case is shown to be of particular importance. The SCFs due to torsion are found to be higher than those due to bending and axial loading. Also, except for short slots, the SCFs due to axial loading are lower than the SCFs caused by the most severe bending case.

Saint-Venant Torsion of Open-Section Members of Uniform Thickness

“…Several numerical methods have also been presented for torsion analysis. The most widely used methods are the finite element method [11][12][13] and the boundary element method [14][15][16]. The line element-less method [17,18] is also a new numerical method among others for torsion analysis.…”

On the stress distribution in a prestretched simply supported strip containing two neighboring circular holes under forced vibration

“…There are many monographs, such as [12,13], that contain results of such investigations. These research efforts are reviewed in [7,[8][9][10][11]14]. It should be noted that nowadays such investigations are studied continuously by many researchers.…”

On the influence of the initial tension of a strip with a rectangular hole on the stress concentration caused by additional loading

“…There are many monographs, such as references [1] and [2], that contain the results of these investigations. A review of the above-mentioned research has been given in references [3] to [6]. It should be noted that these investigations are being studied continuously by many researchers at present.…”