A three-dimensional FEM computer program was developed to establish the stress distributions and SCFs in thick walled cylinders with flush and nonprotruding plain cross bores under internal pressure. The displacement formulation and eight-noded brick isoparametric elements were used. The Frontal solution technique was used due to the limited computing facilities. In the far field, the FEM stresses and displacements were in good agreement with the through thickness analytical values. The variation of SCF with d was established for various thickness ratios. For the maximum hoop stress occurred away from the crotch corner when For the maximum hoop stress occurred away from the crotch corner when For d was found to be a geometrical constant equal to 0.2 where the k values have a SCF of 2.734. For d was found to be a geometrical constant equal to 0.11 where the k values have a SCF of 2.67. A new categorization of cylinders has been proposed: thin shells, thick shells, and thick cylinders.
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November 2003
Technical Papers
Geometric Constants in Plain Cross-Bored Cylinders
J. M. Kihiu,
J. M. Kihiu
Dept. of Mech. Eng., University of Nairobi, PO Box 30197, Nairobi, Kenya
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G. O. Rading,
G. O. Rading
Dept. of Mech. Eng., University of Nairobi, PO Box 30197, Nairobi, Kenya
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S. M. Mutuli
S. M. Mutuli
Dept. of Mech. Eng., University of Nairobi, PO Box 30197, Nairobi, Kenya
Search for other works by this author on:
J. M. Kihiu
Dept. of Mech. Eng., University of Nairobi, PO Box 30197, Nairobi, Kenya
G. O. Rading
Dept. of Mech. Eng., University of Nairobi, PO Box 30197, Nairobi, Kenya
S. M. Mutuli
Dept. of Mech. Eng., University of Nairobi, PO Box 30197, Nairobi, Kenya
Contributed by the Pressure Vessels and Piping Division for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received by the PVP Division August 13, 2002; revision received March 19, 2003. Associate Editor: D. M. Fryer.
J. Pressure Vessel Technol. Nov 2003, 125(4): 446-453 (8 pages)
Published Online: November 4, 2003
Article history
Received:
August 13, 2002
Revised:
March 19, 2003
Online:
November 4, 2003
Citation
Kihiu , J. M., Rading , G. O., and Mutuli, S. M. (November 4, 2003). "Geometric Constants in Plain Cross-Bored Cylinders ." ASME. J. Pressure Vessel Technol. November 2003; 125(4): 446–453. https://doi.org/10.1115/1.1613944
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