Prediction of creep crack initiation behaviour in 316H stainless steel using stress dependent creep ductility

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dc.contributor.authorQuintero, Hanna
dc.contributor.authorMehmanparast, Ali
dc.date.accessioned2016-09-21T09:03:54Z
dc.date.available2016-09-21T09:03:54Z
dc.date.issued2016-07-28
dc.description.abstractThe creep crack initiation behaviour of Type 316H stainless steel at 550 °C has been predicted by implementing a stress dependent creep ductility and average creep strain rate model in finite element analyses. Simulations were performed on five specimen geometries: C(T), CS(T), DEN(T), M(T) and SEN(T). The predicted results have been characterised using the C* fracture mechanics parameter and the short-term, long-term and transition creep crack initiation trends are predicted for each of the specimen geometries examined. The prediction results have been validated through comparison with experimental data available in the literature. The predicted short-term and long-term creep crack initiation trends have also been compared with NSW prediction lines. The predicted results, from each specimen geometry, are compared to each other and the differences in crack initiation trends have been discussed in terms of the specimen geometry, in-plane constraint and stress level effects on the creep crack initiation behaviour of the material. A mesh sensitivity analysis has also been performed to find the optimum mesh size for performing crack initiation simulations.en_UK
dc.identifier.citationHanna Quintero, Ali Mehmanparast, Prediction of creep crack initiation behaviour in 316H stainless steel using stress dependent creep ductility, International Journal of Solids and Structures, Volumes 97–98, 15 October 2016, Pages 101-115en_UK
dc.identifier.issn0020-7683
dc.identifier.urihttp://dx.doi.org/10.1016/j.ijsolstr.2016.07.039
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/10558
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.subjectCreep crack initiationen_UK
dc.subjectConstraint effectsen_UK
dc.subjectCreep ductilityen_UK
dc.subjectSpecimen geometryen_UK
dc.subject316H stainless steelen_UK
dc.subjectLong termen_UK
dc.subjectTransitionen_UK
dc.titlePrediction of creep crack initiation behaviour in 316H stainless steel using stress dependent creep ductilityen_UK
dc.typeArticleen_UK

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