Author/Authors :
K.M.Prabhakaran، نويسنده , , V.VenkatRaj، نويسنده ,
Abstract :
Pipingelbowsunderbendingmomentarevulnerabletocrackingatcrown.ThestructuralintegrityassessmentrequiresknowledgeoftheJ-integral.TheJ-integralvaluesforaxiallythrough-wallcrackedthickelbowsunderin-planebendingmomentarenotavailableinopenliterature.ThispaperpresentstheJ-integralresultsfor90°,longradiuselbowssubjectedtoin-planeopeningbendingmomentbasedonalargenumberoffiniteelementanalysescoveringawiderangeofstandardgeometries.Thenon-linearelastic–plasticfiniteelementanalyseswereperformedusingWARP3Dsoftware.Bothgeometricandmaterialnon-linearitywereconsideredinthestudy.ThegeometryconsideredwereforRm/t=5,6,7.5,9,12,15,20and25withcrackanglesof9°,18°,27°and36°andstrainhardeningexponent,‘n’variedfor2,3,5,7and10.
