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Effect of prior deformation on creep behaviour of AISI 316H austenitic stainless steels

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dc.contributor.advisor O'Dowd, Noel P.
dc.contributor.author Nezhad, Hamed Yazdani
dc.date.accessioned 2012-08-24T10:43:29Z
dc.date.available 2012-08-24T10:43:29Z
dc.date.issued 2012
dc.identifier.uri http://hdl.handle.net/10344/2484
dc.description peer-reviewed en_US
dc.description.abstract Analytical, numerical and experimental investigations on the influence of prior deformation on creep relaxation and creep crack growth behaviour of cracked austenitic steel specimens have been carried out in this work. The evolution of the creep characterising parameters in the presence of residual stress has been examined, initially for single edge notched bend, SEN(B), and tension, SEN(T), specimens and then for compact tension, C(T), specimens. The level of conservatism of available analytical expressions has also been examined in each case. Creep experiments on 316H pre-compressed (pre-stressed) and pre-strained C(T) specimens have been carried out under constant creep loads, and the creep data have been compared with the results from finite element (FE) analysis. Subsequent neutron diffraction measurements have been carried out to quantify the residual stress field within the specimens and useful discussions and comparison with the FE results have been provided. Creep crack growth simulations have also been carried out using the FE method and, after examining the effect of material and geometrical parameters, recommendations have been summarised to provide reasonable agreement with the experiments. en_US
dc.language.iso eng en_US
dc.publisher University of Limerick en_US
dc.subject creep behaviour en_US
dc.subject stress-strain relations en_US
dc.subject creep crack growth en_US
dc.title Effect of prior deformation on creep behaviour of AISI 316H austenitic stainless steels en_US
dc.type info:eu-repo/semantics/doctoralThesis en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.type.supercollection ul_theses_dissertations en_US
dc.contributor.sponsor ERC en_US
dc.contributor.sponsor Irish Government's Programme for Research in Third Level Institutions en_US
dc.contributor.sponsor SFI en_US
dc.relation.projectid CP-CSA INFRA -2008-1.1.1 en_US
dc.relation.projectid 226507-NM13 en_US
dc.relation.projectid 08/RFP/ENM1477 en_US
dc.rights.accessrights info:eu-repo/semantics/closedAccess en_US

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