Modeling of Stress Concentration Factors in CFRP-Reinforced Circular Hollow Section KT-Joints Under Axial Compression

Iqbal, Mohsin and Karuppanan, Saravanan and Perumal, Veeradasan and Ovinis, Mark and Iqbal, Muhammad and Rasul, Adnan (2025) Modeling of Stress Concentration Factors in CFRP-Reinforced Circular Hollow Section KT-Joints Under Axial Compression. In: 5th International Electronic Conference on Applied Sciences, 4th-6th December 2024, Online.

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Abstract

Tubular structures are critical in renewable energy and offshore industries but face significant loads over time, leading to joint degradation. Carbon fiber-reinforced polymers (CFRPs) offer promising rehabilitation solutions, yet existing studies often overlook stress concentration factors (SCFs) along the weld toe. This study examines SCFs at 24 weld toe positions in CFRP-reinforced KT-joints under axial compression. Using 5429 simulations and artificial neural networks, precise estimations of CFRPs’ impact on SCFs were achieved, with <10% error. These findings demonstrate CFRPs’ potential to reduce SCFs and improve fatigue life prediction for tubular joints under axial compression.

Item Type:	Conference or Workshop Item (Paper)
Identification Number:	10.3390/engproc2025087019
Dates:	Date Event 17 March 2025 Accepted 17 March 2025 Published Online
Uncontrolled Keywords:	stress concentration factors (SCFs), carbon fiber-reinforced polymers (CFRPs), KT-joints, axial loads, hot-spot stress (HSS)
Subjects:	CAH10 - engineering and technology > CAH10-01 - engineering > CAH10-01-02 - mechanical engineering
Divisions:	Faculty of Computing, Engineering and the Built Environment > College of Engineering
Depositing User:	Gemma Tonks
Date Deposited:	08 Jul 2025 09:54
Last Modified:	08 Jul 2025 09:56
URI:	https://www.open-access.bcu.ac.uk/id/eprint/16492

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