dc.contributor.author | Zhai, T | |
dc.contributor.author | Xu, Y G | |
dc.contributor.author | Martin, J W | |
dc.contributor.author | Wilkinson, A J | |
dc.contributor.author | Briggs, G A D | |
dc.date.accessioned | 2011-12-01T13:01:03Z | |
dc.date.available | 2011-12-01T13:01:03Z | |
dc.date.issued | 1999-10 | |
dc.identifier.citation | Zhai , T , Xu , Y G , Martin , J W , Wilkinson , A J & Briggs , G A D 1999 , ' A self-aligning four-point bend testing rig and sample geometry effect in four-point bend fatigue ' , International Journal of Fatigue , vol. 21 , no. 9 , pp. 889-894 . https://doi.org/10.1016/S0142-1123(99)00084-5 | |
dc.identifier.issn | 0142-1123 | |
dc.identifier.other | PURE: 465083 | |
dc.identifier.other | PURE UUID: 827db992-d827-4be0-aa30-518dcdb2b610 | |
dc.identifier.other | WOS: 000083185500002 | |
dc.identifier.other | Scopus: 0033204590 | |
dc.identifier.uri | http://hdl.handle.net/2299/7211 | |
dc.description.abstract | A self-aligning four-point bend testing rig was designed and made which can minimise the possible misalignment associated with a four-point bend test and be used to study the fatigue of materials both at room and elevated temperatures. The stress distribution between the inner-rollers in a specimen under four-point bend, that is the nominal pure-bending section length, was analysed with respect to various load-span/specimen-thickness ratios (t/h) and support-span/load-span ratios (Wt) using a finite element method. It was found that the stress distribution could vary with both t/h and L/t. It was found that values of t/h and L/t between 1.2 and 1.5 and between 4 and 5, respectively, were the optimum testing geometry which led to a relatively uniform stress distribution consistent with the value calculated by beam theory. Fatigue tests (R=0.1 and frequency=20 Hz) were carried out on samples with different thickness in a peak-aged 8090 AI-Li alloy using the rig. The results appear to support the finite element results. The S-N curve of the 8090 Al-Li alloy was measured using the optimum testing geometry in the four-point bend, and it was found to be consistent with that reported in the literature. (C) 1999 Elsevier Science Ltd. All rights reserved. | en |
dc.format.extent | 6 | |
dc.language.iso | eng | |
dc.relation.ispartof | International Journal of Fatigue | |
dc.subject | four-point-bend fatigue test | |
dc.subject | geometry effect | |
dc.subject | 8090 Al-Li alloy | |
dc.subject | S-N curve | |
dc.subject | finite element method | |
dc.subject | PROPAGATION | |
dc.subject | INITIATION | |
dc.subject | CRACKS | |
dc.title | A self-aligning four-point bend testing rig and sample geometry effect in four-point bend fatigue | en |
dc.contributor.institution | School of Engineering and Technology | |
dc.description.status | Peer reviewed | |
rioxxterms.version | VoR | |
rioxxterms.versionofrecord | https://doi.org/10.1016/S0142-1123(99)00084-5 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |