Abstract
This paper discusses the development of semi-empirical relations for the maximum stress concentration factor (SCF) around circular holes embedded in aluminum tubes under various expansion ratios and mandrel angles. Finite element models were developed to study the expansion of a typical aluminum tube with embedded holes of various sizes. An elastic perfectly-plastic material behaviour was used to describe the structural response of the tubes under expansion. Various hole-diameter-to-tubewall- thickness ratios, tube expansion ratios, and mandrel angles were considered to determine the stress state around the hole at zero and 90 degree locations from which the maximum SCF was determined. Semi-empirical relations for the maximum SCF using the Lagrange interpolation formulation were developed. The developed relations were found to predict the SCFs accurately.
Keywords
Publication details
- DOI
- 10.24200/tjer.vol10iss1pp88-96
- Journal
- The Journal of Engineering Research, 10(1), 88
- Publisher
- Sultan Qaboos University
- Open access
- Gold open access
- License
- CC BY 4.0
Cite this article
APA 7
Mhamdi, L., Seibi, A., Karrech, A., El-Borgi, S., & Barsoum, I. (2013). Stress Concentration Factor of Expanded Aluminum Tubes Using Finite Element Modeling. The Journal of Engineering Research, 10(1), 88. https://doi.org/10.24200/tjer.vol10iss1pp88-96
MLA 9
Mhamdi, Lassaad, et al. "Stress Concentration Factor of Expanded Aluminum Tubes Using Finite Element Modeling." The Journal of Engineering Research, vol. 10, no. 1, 2013, pp. 88. https://doi.org/10.24200/tjer.vol10iss1pp88-96.
Chicago (author–date)
Mhamdi, Lassaad, AC Seibi, Ali Karrech, S. El-Borgi, and Imad Barsoum. 2013. "Stress Concentration Factor of Expanded Aluminum Tubes Using Finite Element Modeling." The Journal of Engineering Research 10 (1): 88. https://doi.org/10.24200/tjer.vol10iss1pp88-96.
Harvard
Mhamdi, L., Seibi, A., Karrech, A., El-Borgi, S. and Barsoum, I. (2013) 'Stress Concentration Factor of Expanded Aluminum Tubes Using Finite Element Modeling', The Journal of Engineering Research, 10(1), pp. 88. doi:10.24200/tjer.vol10iss1pp88-96.
Vancouver
Mhamdi L, Seibi A, Karrech A, El-Borgi S, Barsoum I. Stress Concentration Factor of Expanded Aluminum Tubes Using Finite Element Modeling. The Journal of Engineering Research. 2013;10(1):88. doi:10.24200/tjer.vol10iss1pp88-96
IEEE
L. Mhamdi, A. Seibi, A. Karrech, S. El-Borgi, and I. Barsoum, "Stress Concentration Factor of Expanded Aluminum Tubes Using Finite Element Modeling," The Journal of Engineering Research, vol. 10, no. 1, pp. 88, 2013, doi: 10.24200/tjer.vol10iss1pp88-96.