Picture of virus under microscope

Research under the microscope...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

Explore SIPBS research

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

Li, H. and Johnston, R. and Mackenzie, D. (2010) Effect of autofrettage in the thick-walled cylinder with a radial cross-bore. Journal of Pressure Vessel Technology, 132 (1). 011205. ISSN 0094-9930

[img]
Preview
PDF (Mackenzie D - strathprints - Effect of autofrettage in the thick-walled cylinder with a radial cross-bore Jan 2010)
Mackenzie_D_strathprints_Effect_of_autofrettage_in_the_thick_walled_cylinder_with_a_radial_cross_bore_Jan_2010.pdf - Preprint

Download (536kB) | Preview

Abstract

The effect of autofrettage on the stress level in thick-walled cylinders with a radial cross-bore is investigated by applying inelastic finite element analysis with cyclic pressure loading. A macro is created in ANSYS to calculate the equivalent alternating stress intensity, S-eq, based on the ASME Boiler and Pressure Vessel Code. The value of S-eq 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 increased compared with the case where no autofrettage is used.