Title of article :
Normalizingtheinfluenceofflawlengthonfailurepressureofstraightpipewithwall-thinningOriginalResearchArticle
Author/Authors :
MasayukiKamaya، نويسنده , , TomohisaSuzuki، نويسنده , , ToshiyukiMeshii، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Bursttestsusingwall-thinnedpipeofcarbonsteelforhigh-temperatureusewereconductedinordertoexaminetheinfluenceoflengthofwall-thinningonburstpressure.Then,three-dimensionalelastic-plasticlargedeformationfiniteelementanalyses(EP-FEA)wereperformedtoaccuratelypredicttheburstpressureobtainedbythetests.Thefailurepressurecorrespondingtotheburstpressureintestswasdefinedasthemaximumpressureduringtheanalysisincludingtheinstabilityconditionafterthepeakofpressure.TheresultsshowedthatthefailurepressureobtainedbyEP-FEAagreedwellwiththeexperimentalresults.Finally,failurepressuresofwall-thinnedpipeswithvarioussizes,thicknesses,flawlengthsanddepthswereexaminedbyEP-FEAwiththesameprocedureofanalysisasvalidatedinthispaper.Theresultsshowedthat,fromthestandpointofinfluenceofflawlengthonfailurepressure,itispreferabletonormalizeflawlengthbypipemeanradiusoftheunflawedsectionRratherthanbyshellparameter(Rt)0.5,wheretisthethicknessoftheunflawedsection.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
