Title of article
EffectoflengthofthinningareaonthefailurebehaviorofcarbonsteelpipecontainingadefectofwallthinningOriginalResearchArticle
Author/Authors
JinWeonKim، نويسنده , , ChiYongPark، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
11
From page
274
To page
284
Abstract
Thepresentstudyperformedpipefailuretestsusing102mm-Sch.80carbonsteelpipewithvarioussimulatedwallthinningdefects,toinvestigatetheeffectofaxiallengthofwallthinningandinternalpressureonthefailurebehaviorofpipethinnedbyflowacceleratedcorrosion(FAC).Thetestswereconductedunderloadingconditionsoffour-pointbendingwithandwithoutinternalpressure.Theresultsshowedthatafailuremodeofpipewithadefectdependedonthemagnitudeofinternalpressureandaxialthinninglengthaswellasstresstypeandthinningdepthandcircumferentialangle.Bothloadcarryingcapability(LCC)anddeformationcapability(DC)weredependedonstresstypeinthethinningareaanddimensionsofthinningdefect.Forapplyingtensilestresstothethinnedarea,thedependenceofLCContheaxiallengthofwallthinningwasdeterminedbycircumferentialthinningangle,andtheDCwasproportionallyincreasedwithincreaseinaxiallengthofwallthinningregardlessofthecircumferentialangle.Forapplyingcompressivestresstothinnedarea,however,theLCCwasdecreasedwithincreaseinaxiallengthofthethinnedarea.Also,theeffectofinternalpressureonfailurebehaviorwascharacterizedbyfailuremodeofthinnedpipe,anditpromotedcrackoccurrenceandmitigatedalocalbucklingofthethinnedarea.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2003
Journal title
Nuclear Engineering and Design Eslah
Record number
894504
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