KK tubular joints are used to build jacket-type offshore structures. These joints are mostly made up of structural steel. These joints can withstand yield, buckling, and lateral loads depending on the structure’s design and environment. In this study, the Finite Element Model of the KK-type tubular joint has been created, and analysis has been performed under static loading using the Static Structural analysis system of ANSYS 19.2 commercial software and structural mechanics module of COMSOL Multiphysics. The KK tubular model is analyzed under compressive load conditions, and the resulting stress, strain, and deformation values are tabulated in both graphical and tabular form. This study includes a comparison of the outcomes from both commercial software. The results highlight that maximum stress, strain, and deformation values decrease as joint thickness increases. This study holds significant relevance in advancing the understanding of tubular KK joints and their response to compressive loading. The insights derived from the analysis have the potential to contribute to the development of more robust and reliable tubular KK joints in various engineering and structural applications.
References
[1]
Zhao, X., Han, S., Hu, K., Chen, Y. and Wu, A. (2015) Experimental Study on Static Behavior of Multi-Planar Overlapped CHS KK-Joints. In: de Miranda Batista, E., Vellasco, P. and de Lima, L.R.O., Eds., Tubular Structures XV, CRC Press, 505-512. https://doi.org/10.1201/b18410-75
[2]
Chen, Y. and Wang, W. (2003) Flexural Behavior and Resistance of Uni-Planar KK and X Tubular Joints. Steel and Composite Structures, 3, 123-140. https://doi.org/10.12989/scs.2003.3.2.123
[3]
Santosh Sawant, S. and Muthumani, K. (2020) Analysis of Tubular Joint of Offshore Structure. Journal of Physics: Conference Series, 1716, Article ID: 012012. https://doi.org/10.1088/1742-6596/1716/1/012012
[4]
Santacruz, A. and Mikkelsen, O. (2021) Numerical Stress Analysis of Tubular Joints. IOP Conference Series: Materials Science and Engineering, 1201, Article ID: 012032. https://doi.org/10.1088/1757-899x/1201/1/012032
[5]
Oshogbunu, E.O., Wang, Y.C. and Stallard, T. (2021) Reliability and Applications of a New Design Method for Calculating Hot-Spot Stress in CHS Double K-Joints under Arbitrary Combined Loading. Structures, 29, 1610-1626. https://doi.org/10.1016/j.istruc.2020.11.057
[6]
Zhao, X.Z., Qiu, S., Chen, Y.Y., Xu, X.B., Wu, X.F., Hu, K.H., et al. (2017) Behavior of Overlapped CHS K/KK-Joints with Different Welding Situations. In: Heidarpour, A. and Zhao, X.-L., Eds., Tubular Structures XVI, CRC Press, 647-655. https://doi.org/10.1201/9781351210843-80
[7]
Forti, N.C.D.S., Requena, J.A.V. and Forti, T.L.D. (2017) Numerical Methodology for Analyses of Tubular KK Multiplanar Steel Joints. REM—International Engineering Journal, 70, 157-165. https://doi.org/10.1590/0370-44672014700205
[8]
Jingxia, Y., Yuliang, L., Chi, Z., Qi, Z. and Zhifan, D. (2016) Fatigue Strength Assessment on a Multiplanar Tubular KK-Joints by Scaled Model Test. Journal of Offshore Mechanics and Arctic Engineering, 138, Article ID: 021602. https://doi.org/10.1115/1.4032158
[9]
Aghaei, A., Gharabaghi, A.M. and Chenaghlou, M.R. (2006) New Parametric Equations for Estimating Stress Concentration Factors in Tubular KK-Joints Under Axial Loading. https://www.researchgate.net/publication/267758227
[10]
Kadry, A.A., Ebid, A.M., Mokhtar, A.A., El-Ganzoury, E.N. and Haggag, S.A. (2022) Parametric Study of Unstiffened Multi-Planar Tubular KK-Joints. Results in Engineering, 14, Article ID: 100400. https://doi.org/10.1016/j.rineng.2022.100400
[11]
Ahmadi, H., Alinezhad, R. and Alizadeh Atalo, A. (2021) Stress Concentration Analysis of Internally Ring-Stiffened Two-Planar Tubular KK-Joints. Ships and Offshore Structures, 17, 2203-2217. https://doi.org/10.1080/17445302.2021.1979922
[12]
Mia, M.J., Islam, M., Kabir, A. and Islam, M. (2022) Numerical Analysis of Tubular XT Joint of Jacket Type Offshore Structures under Static Loading. Bangladesh Maritime Journal, 6, 2520-1840.
[13]
Chandrupatla Tirupathi, R. and Belegundu, A.D. (2009) Introduction to Finite Elements in Engineering. Pearson Education Taiwan Ltd.
[14]
Gazi Karakoc, S.B. and Neilan, M. (2014) A C0 Finite Element Method for the Biharmonic Problem without Extrinsic Penalization. Numerical Methods for Partial Differential Equations, 30, 1254-1278. https://doi.org/10.1002/num.21868
[15]
Singer, F.L. and Pytel, A. (1980) Strength of Materials. Harper& Row.
