Measurement of residual stresses in aluminothermic rail welds using neutron diffraction technique

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dc.contributor.authorKhodabakhshi, Ben_AU
dc.contributor.authorMutton, PJen_AU
dc.contributor.authorParadowska, AMen_AU
dc.contributor.authorIbrahim, Ren_AU
dc.date.accessioned2021-10-08T04:22:30Zen_AU
dc.date.available2021-10-08T04:22:30Zen_AU
dc.date.issued2012-11-09en_AU
dc.date.statistics2021-09-23en_AU
dc.descriptionNot available online. Conference Handbook is held by ANSTO Library at DDC 539.758/9.en_AU
dc.description.abstractAluminothermic welding is widely used as an in-track process to continuously weld rail tracks on site. This process provides increased flexibility compared to the use of mobile Flashbutt welding equipment; however the cast structure and variable quality results in increased failure rates. One of these failure modes is straight break which initiates at the edge of the weld collar in the lower head and upper foot sections. In order to examine the fatigue behavior of the weld by using multi-axle fatigue analysis, residual stresses in critical areas need to be investigated. In this paper, we are showing preliminary neutron diffraction residual stress measurements in the critical region of the rail foot area at two sides of the weld collar, which have been determined using strain scanner Kowari at ANSTO. The result shows high longitudinal stresses in the location which is prone to the failure approximately 50 mm away from the weld's toe. The pros and cons of the measurement technique in relation to the weld rails components will be discussed and future research plans will be presented.en_AU
dc.identifier.citationKhodabakhshi, B.' Mutton, Paradowska, A., & Ibrahim, R. (2012). Measurement of residual stresses in aluminothermic rail welds using neutron diffraction technique. Paper presented at the 10th AINSE-ANBUG Neutron Scattering Symposium (AANSS), Sydney, 7- 9 November 2012, (pp. 53)en_AU
dc.identifier.conferenceenddate9 November 2012en_AU
dc.identifier.conferencename10th AINSE-ANBUG Neutron Scattering Symposium (AANSS)en_AU
dc.identifier.conferenceplaceSydney, NSW, Australiaen_AU
dc.identifier.conferencestartdate7 November 2012en_AU
dc.identifier.pagination53en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11900en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Nuclear Science and Engineering (AINSE)en_AU
dc.subjectFatigueen_AU
dc.subjectResidual stressesen_AU
dc.subjectStressesen_AU
dc.subjectRailwaysen_AU
dc.subjectWeldingen_AU
dc.subjectNeutron diffractionen_AU
dc.titleMeasurement of residual stresses in aluminothermic rail welds using neutron diffraction techniqueen_AU
dc.typeConference Presentationen_AU
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