SCF Analysis of Tubular K-Joint under Compressive and Tensile Loads

International Journal of Mechanical Engineering
© 2018 by SSRG - IJME Journal
Volume 5 Issue 10
Year of Publication : 2018
Authors : Iberahin Jusoh
: 10.14445/23488360/IJME-V5I10P101
MLA Style:

Iberahin Jusoh, "SCF Analysis of Tubular K-Joint under Compressive and Tensile Loads" SSRG International Journal of Mechanical Engineering 5.10 (2018): 1-4.

APA Style:

Iberahin Jusoh,(2018). SCF Analysis of Tubular K-Joint under Compressive and Tensile Loads. SSRG International Journal of Mechanical Engineering 5(10), 1-4.


Joint connections are widely used in assembly of two or more structural elements. For a simple tubular K-joint, two main components are there namely chord and bracing. Local stress in tubular joint is extremely complex which involve punching shear, shell bending and membrane stress. It is the chord that that transfer load from one brace member to another and at the same time sustains the severest localized shell bending stresses in the process. In this study tubular gap K-joint under compressive and tensile loads were investigated. Case study C1 is for compressive loading acting on brace B of the model while Case study CT2 is for compressive load on brace B and tensile load on brace A. Results shows that the highest value of Stress Concentration Factor (SCF) occurred when the brace-to-chord thickness ratio =0.6 and brace-to-chord diameter ratio, =0.9 with a magnitude of 6.1295. This is an increment of about 24% for the same loading on K-joint with =0.7.


[1] International Organization for Standardization (2001). Static Strength of High Strength Steel Tubular Joints. Maidenhead, England, ISO/CD 19902.
[2] Graff, W. J. (1981). Introduction to Offshore Structures: Design Fabrication Installation. Houston, Texas: Gulf Publishing Company. 149-200.
[3] Saini, D.S., Karmakar, D. and Ray-Chaudhuri, S. (2016). A review of stress concentration factors in tubular and non-tubular joints for design of offshore installations. Journal of Ocean Engineering and Science 1 (2016) 186–202
[4] Budynas, R. G. and Nisbett, J. K. (2011). Shigley’s Mechanical Engineering Design. 9th Ed., McGraw-Hill. 217-218.
[5] Kuang, J. G., Potvin, A. B., Leick, R. D. and Kahlich, J. L. (1977). Stress Concentration in Tubular Joints. Society of Petroleum Engineers Journal. 287-299.

Key Words:

tubular gap K-joint, structural modelling, SCF analysis, compressive and tensile loads