Title of article
Realisticseismicqualificationusingtheupdatedfiniteelementmodelforin-corecomponentsofreactorsOriginalResearchArticle
Author/Authors
JyotiK.Sinha، نويسنده , , A.RamaRao، نويسنده , , R.K.Sinha، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
6
From page
232
To page
237
Abstract
Itisnowmandatorytoseismicallyqualifythesafety-relatedstructuresandcomponentsusedinthenuclearpowerplants.Amongseveralqualificationapproachesthequalificationbytheanalysisusingfiniteelement(FE)methodisthemostcommonapproachusedinpractice.However,theestimateddynamicbehaviourbyFEmodelofastructureisknowntoshowsignificantdeviationsfromthedynamicbehaviourofthe‘as-installed’structureinmanycases.Consideringsuchlimitations,fewresearchershaveadvocatedre-qualificationofsuchstructuresaftertheirinstallationatsitetoenhancetheconfidenceinqualificationvis-à-visplantsafety.Forsuchanexercise,validationofFEmodelwithexperimentalmodaldataisimportant.AvalidatedFEmodelcanbeobtainedbythemodelupdatingmethodsinconjugationwiththeinsituexperimentalmodaldata.Suchamodelcanthenbeusedforqualification.However,forthereactorin-corecomponentssuchamodaltestingandFEmodelupdatingmaynotbestraightforward.Hence,thecomplicationinvolvedinthereliableseismicqualificationofin-corecomponentsandtheadvantageofusingtheFEmodelupdatinghasbeenbroughtoutinthepaperthroughanexampleofatypicalin-corecomponent—aperforatedhorizontaltuberecentlyinstalledinanuclearreactorinIndia.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2006
Journal title
Nuclear Engineering and Design Eslah
Record number
895987
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