Title of article
Numericalpredictionofcrackpropagationbyanenhancedelement-freeGalerkinmethodOriginalResearchArticle
Author/Authors
Sang-HoLee، نويسنده , , Young-CheolYoon، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
15
From page
257
To page
271
Abstract
Anenhancedelement-freeGalerkin(EFG)methodwithenhancementfunctionsisproposedtoimprovethesolutionaccuracyforlinearelasticfractureproblem.TheenhancementfunctionsareaddedtotheconventionalEFGapproximationfortheimplicitdescriptionofnear-tipfield.Thediscontinuityofcracksurfaceisefficientlymodeledbyintroducingadiscontinuityfunction.Essentialboundaryconditionsareenforcedwiththepenaltymethodandacouplingwithfiniteelement.Theproposedmethodmodelsthecrackgrowthimplicitlywithoutnodeoperationsothattheinitialnodearrangementisnotmodifieduntiltheendofanalysis.Numericalexamplesforvariouscrackproblemsshowtherobustnessoftheproposedmethodbyexaminingthestressintensityfactor,near-tipstressfieldanderrors.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894656
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