dc.contributor.author | Kihiu, J M | |
dc.contributor.author | Rading, G O | |
dc.contributor.author | Mutuli, S M | |
dc.date.accessioned | 2013-08-08T12:17:16Z | |
dc.date.available | 2013-08-08T12:17:16Z | |
dc.date.issued | 2006 | |
dc.identifier.citation | J M Kihiu, G O Rading and S M Mutuli (2006). Overstrain in flush optimal-chamfered cross-bored cylinders. Journal of Mechanical Engineering Science vol. 220 no. 1 15-25 | en |
dc.identifier.uri | http://pic.sagepub.com/content/220/1/15.short | |
dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/55479 | |
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 7.5° 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 |
dc.language.iso | en | en |
dc.title | Overstrain in flush optimal-chamfered cross-bored cylinders | en |
dc.type | Article | en |