Parametric study of the thin shell solution of internally pressurized spherical vessel–cylindrical nozzle juncture is used to develop simplified closed-form formulas of stress concentration factor (SCF) as functions of the key vessel–nozzle geometric parameters known to influence the solution. The SCF values are not based on the vessel stresses alone; nozzle stresses are also analyzed and the corresponding SCF determined. Therefore, for a given vessel–nozzle juncture, the designer will be left with adequate information upon which to decide the controlling SCF. Predictions by the proposed equations are validated using finite element method (FEM). Consequently, design charts are presented based on both the vessel's and nozzle's SCF as predicted by the proposed expressions.
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June 2016
Research-Article
Simplified Formulation of Stress Concentration Factors for Spherical Pressure Vessel–Cylindrical Nozzle Juncture
Husain J. Al-Gahtani,
Husain J. Al-Gahtani
Department of Civil
and Environmental Engineering,
King Fahd University of Petroleum and Minerals,
Dhahran 31261, Saudi Arabia
e-mail: hqahtani@kfupm.edu.sa
and Environmental Engineering,
King Fahd University of Petroleum and Minerals,
Dhahran 31261, Saudi Arabia
e-mail: hqahtani@kfupm.edu.sa
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Faisal M. Mukhtar
Faisal M. Mukhtar
Department of Civil and
Environmental Engineering,
King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
e-mail: faisalmu@kfupm.edu.sa
Environmental Engineering,
King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
e-mail: faisalmu@kfupm.edu.sa
Search for other works by this author on:
Husain J. Al-Gahtani
Department of Civil
and Environmental Engineering,
King Fahd University of Petroleum and Minerals,
Dhahran 31261, Saudi Arabia
e-mail: hqahtani@kfupm.edu.sa
and Environmental Engineering,
King Fahd University of Petroleum and Minerals,
Dhahran 31261, Saudi Arabia
e-mail: hqahtani@kfupm.edu.sa
Faisal M. Mukhtar
Department of Civil and
Environmental Engineering,
King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
e-mail: faisalmu@kfupm.edu.sa
Environmental Engineering,
King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
e-mail: faisalmu@kfupm.edu.sa
1Corresponding author.
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received July 10, 2015; final manuscript received November 16, 2015; published online February 5, 2016. Assoc. Editor: Osamu Watanabe.
J. Pressure Vessel Technol. Jun 2016, 138(3): 031201 (10 pages)
Published Online: February 5, 2016
Article history
Received:
July 10, 2015
Revised:
November 16, 2015
Citation
Al-Gahtani, H. J., and Mukhtar, F. M. (February 5, 2016). "Simplified Formulation of Stress Concentration Factors for Spherical Pressure Vessel–Cylindrical Nozzle Juncture." ASME. J. Pressure Vessel Technol. June 2016; 138(3): 031201. https://doi.org/10.1115/1.4032112
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