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Effect of autofrettage in the thick-walled cylinder with a radial cross-bore

Li, Hongjun and Johnston, Richard and Mackenzie, Donald (2007) Effect of autofrettage in the thick-walled cylinder with a radial cross-bore. In: Proceedings of the 2007 ASME Pressure Vessels and Piping Conference. ASME, pp. 11-17. ISBN 0-7918-4283-5

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Abstract

Paper presented at the 2007 ASME Pressure Vessels and Piping Conference, 22-26 July, San Antonio, Texas, USA. The effect of autofrettage on the stress level in thick-walled cylinders with a radial cross-bore is investigated by applying inelastic FEA with cyclic pressure loading. A macro is created in ANSYS to calculate the equivalent alternating stress intensity, Seq, based on the ASME Boiler and Pressure Vessel Code. The value of Seq is used to evaluate the fatigue life of the vessel. For a specific cyclic load level, a distinct optimum autofrettage pressure is identified by plotting autofrettage pressure against the number of cycles from design fatigue data. The fatigue life of the autofrettaged vessel with such an optimum pressure is significantly increased compared with the case where no autofrettage is used.

Item type: Book Section
ID code: 20603
Notes: Also published in: Journal of Pressure Vessel Technology (2010), 132 (1), pp011205-011210. (This is a variant record)
Keywords: autofrettage, thick-walled cylinder, radia cross-bore, inelastic finite element analysis, ANSYS, cyclic load, fatigue, pressure vessels, Mechanical engineering and machinery
Subjects: Technology > Mechanical engineering and machinery
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Related URLs:
Depositing user: Strathprints Administrator
Date Deposited: 09 Jul 2010 13:48
Last modified: 30 May 2013 15:11
URI: http://strathprints.strath.ac.uk/id/eprint/20603

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