Modelling the influence of laser drilled recast layer thickness on the fatigue performance of CMSX-4

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dc.contributor.authorMorar, Nicolau
dc.contributor.authorRoy, Rajkumar
dc.contributor.authorGray, Simon
dc.contributor.authorNicholls, John R.
dc.contributor.authorMehnen, Jorn
dc.date.accessioned2019-01-31T18:39:22Z
dc.date.available2019-01-31T18:39:22Z
dc.date.issued2018-11-02
dc.description.abstractThis paper introduces a novel approach to fatigue life prediction modelling considering the laser drilling effect on film cooling holes of turbine vanes. The methodology proposed is based on a stress-life model such as the Basquin law and the introduction of manufacturing damage effect. The proposed empirical model gives a unique versatility compared to other stress-life models by considering surface damage such as the recast layer produced by the laser drilling process. The proposed empirical model has been thoroughly tested and validated using existing fatigue data. The statistical analysis shows that the proposed model is adequate for estimating the fatigue life of laser drilled specimens considering the recast layer thicknesses effect. The proposed model also can estimate the life of untested specimens even when only a small sample of fatigue data is available, thereby reducing the required testing data.en_UK
dc.identifier.citationNicolau Iralal Morar, Rajkumar Roy, Simon Gray, et al., Modelling the influence of laser drilled recast layer thickness on the fatigue performance of CMSX-4. Procedia Manufacturing, Volume 16, 2018, Pages 67-74en_UK
dc.identifier.issn2351-9789
dc.identifier.urihttps://doi.org/10.1016/j.promfg.2018.10.173
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/13870
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectFatigue lifeen_UK
dc.subjectsurface defectsen_UK
dc.subjectlaser drillingen_UK
dc.subjectrecast layeren_UK
dc.titleModelling the influence of laser drilled recast layer thickness on the fatigue performance of CMSX-4en_UK
dc.typeArticleen_UK

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