Title of article
FatiguecrackpropagationtestingusingsubsizedrotatingbendingspecimensOriginalResearchArticle
Author/Authors
C.SShin، نويسنده , , P.CChen، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
14
From page
13
To page
26
Abstract
Inmanyindustrialapplications,mechanicalpropertiescharacterizationisneededyetsufficientamountofmaterialforstandardsizedspecimensisnotavailable.Miniaturizedspecimentestingtechniquehastobeemployed.Currentlytherearealotofeffortindevelopingsubsizedspecimentechniqueforimpact,fracturetoughnessandtensileproperties.Workonfatiguepropertiestestingislimitedandlargelyconfinedtostress/strainlifetests.Inthecurrentwork,evaluationoffatiguecrackpropagationbehaviourusingsurfacecrackgrowthinarotatingbendingrodhasbeenattempted.Ninedifferentrodgeometrieshavebeentested.Theresultingfatiguecrackpropagationdataismoresensitivetoroddiameterthantorodlength.Differenceincrackgrowthbehaviourcanlargelybeunderstoodwhencrackclosureistakenintoaccount.Allinall,thecrackpropagationdataobtainedfromthesesmallsizedrodsagreewellwiththoseobtainedfromstandardtestingemployingcompacttensionspecimens.Amoreprecisepictureaboutthecrackgrowthbehaviourcanbeobtainedifcrackclosureisconsidered.Ifcrackclosureisnotmonitored,rodswithlongerlengthandsmallerdiameteraremorelikelytogivetheconservativeupperboundfatiguecrackpropagationbehaviour.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894747
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