A computational and experimental comparison on the nucleation of fatigue cracks in statistical volume elements

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dc.contributor.authorKakandar, Ebiakpo
dc.contributor.authorBarrios, Alejandro
dc.contributor.authorMichler, Johann
dc.contributor.authorMaeder, Xavier
dc.contributor.authorPierron, Olivier N.
dc.contributor.authorCastelluccio, Gustavo M.
dc.date.accessioned2020-04-16T13:14:05Z
dc.date.available2020-04-16T13:14:05Z
dc.date.issued2020-04-05
dc.description.abstractThe failure of micron-scale metallic components presents significant variability as a result of their size being comparable to microstructural length scales. Indeed, these components do not represent the bulk of the material but correspond to statistical volume elements (SVEs). This work investigates the role of SVEs on fatigue crack nucleation with a novel comparison between microbeam experiments and microstructure-sensitive simulations. We recreate multiple microstructural computational realizations to estimate fatigue crack nucleation lives and orientations by means of physics-based crystal plasticity models. We demonstrate a unique approach to validate microstructure sensitive models and quantify the fatigue crack stochasticity associated with small volumes.en_UK
dc.identifier.citationKakandar E, Barrios A, Michler J, et al., (2020) A computational and experimental comparison on the nucleation of fatigue cracks in statistical volume elements. International Journal of Fatigue, Volume 137, August 2020, Article number 105633en_UK
dc.identifier.issn0142-1123
dc.identifier.urihttps://doi.org/10.1016/j.ijfatigue.2020.105633
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/15396
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.subjectCrystal plasticityen_UK
dc.subjectMesoscale modelen_UK
dc.subjectlMicrostructureen_UK
dc.subjectFatigueen_UK
dc.subjectMEMSen_UK
dc.titleA computational and experimental comparison on the nucleation of fatigue cracks in statistical volume elementsen_UK
dc.typeArticleen_UK

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