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Analysis of Geometrical Parameters of Tubular TY-Joints on Stress Concentration Factors Due to Axial Loads

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Abstract

In this paper, the influence of geometric parameters on the stress concentration factors due to three different types of axial loading on 81 TY tubular structures is studied. Our results reveal that, geometric parameters have a considerable impact on the variation of stress concentration factors on tubular TY-joints under axial loads. Thus, the highest stress concentration factor values are observed on the vertical brace than on the inclined one. The finite element results of the tubular structures were verified by parametric equations and experimental data. A parametric study was carried out by analyses using the non-linear regression method to obtain parametric equations. These equations are used to calculate stress concentration factors and to analyse the fatigue resistance of TY-joints due to axial loads.

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Authors and Affiliations

  1. Faculty of Sciences, University of Maroua, Maroua, P.O. Box 46, Cameroon

    Mohamadou Aminou Sambo & Gambo Betchewe

  2. National Advance School of Mines and Petroleum Industries, University of Maroua, Maroua, P.O. Box 46, Cameroon

    Guy Richard Kol

  3. School of Geology and Mining Engineering, University of Ngaoundéré, Ngaoundéré, P.O. Box 454, Cameroon

    Guy Richard Kol

Authors
  1. Mohamadou Aminou Sambo
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  2. Guy Richard Kol
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  3. Gambo Betchewe
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Correspondence to Guy Richard Kol.

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Article Highlights

• Determining the stress concentration factors (SCF) on weld toe indicates fatigue critical locations and facilitates the orientation of the structural inspection for maintenance;

• The highest values of the stress concentration factor (SCF) are observed on the vertical brace than on the inclined one of the tubular TY-joint;

• The maximum stresses in the hot spots also vary with the type of loading;

• Geometric parameters have a considerable impact on the variation of stress concentration factors and the proposed equations can reliably be used for the fatigue analysis and design of uniplanar tubular TY-joints.

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Sambo, M.A., Kol, G.R. & Betchewe, G. Analysis of Geometrical Parameters of Tubular TY-Joints on Stress Concentration Factors Due to Axial Loads. J. Marine. Sci. Appl. 21, 133–143 (2022). https://doi.org/10.1007/s11804-022-00264-z

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  • DOI: https://doi.org/10.1007/s11804-022-00264-z

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