Overstrain in flush optimal-chamfered cross-bored cylinders

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dc.contributor.author Kihiu, J.M.
dc.contributor.author Rading, G.O.
dc.contributor.author Mutuli, S.M.
dc.date.accessioned 2012-09-24T10:13:16Z
dc.date.accessioned 2013-07-19T07:42:40Z
dc.date.available 2012-09-24T10:13:16Z
dc.date.available 2013-07-19T07:42:40Z
dc.date.issued 2006-01-01
dc.identifier.citation http://pic.sagepub.com/content/220/1/15.refs.html en_US
dc.identifier.uri http://pic.sagepub.com/content/220/1/15
dc.identifier.uri http://hdl.handle.net/123456789/1524
dc.identifier.uri http://hdl.handle.net/123456789/690
dc.description Proceedings of the Institution of Mechanical Engineers en_US
dc.description.abstract A three-dimensional finite-element method computer program was developed to establish the elastic–plastic, residual, and service stress distributions in cylinders with flush and non-protruding optimal-chamfered cross-bores under internal pressure. Eight-noded brick and four-noded tetrahedral isoparametric elements and the displacement formulation were used. The incremental theory of plasticity with a 5 per cent yield condition and von Mises yield criterion were assumed. The incipient and 5 per cent overstrain (ov) pressures were established for various thickness ratios and cross-bore to main bore radius ratios. For the optimum chamfer angle geometrical configuration, the stresses were determined for varying ov. The maximum and minimum effective stresses were located 7.58 from the meridional and transverse planes, respectively. Meridional plane through thickness yielding occurred at an ov of 41 per cent. The service stress gradients at the cross-bore chamfer end increased with ov for ovs .30 per cent. Stress reversals were eliminated for overstrain .27 per cent. Alternative autofrettage and yield condition procedures were proposed. en_US
dc.description.sponsorship Department of Mechanical Engineering, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya en_US
dc.language.iso en en_US
dc.publisher SAGE en_US
dc.relation.ispartofseries Journal of Mechanical Engineering Science 2006;vol. 220 no. 1
dc.subject elastic–plastic en_US
dc.subject residual stress en_US
dc.subject service stress en_US
dc.subject overstrain en_US
dc.subject autofrettage en_US
dc.title Overstrain in flush optimal-chamfered cross-bored cylinders en_US
dc.type Article en_US

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