luesofcharacteristicparametersdamannounced.CrackprofilesfromtheanalysisleftinFigure1(b)arepresented.El-AidiandHall(1989)didaresearchonseismicfractureofPineflatdam.Smearedcrackmodelandstrengthcriteriaforcrackexpansionandgrowthwereused.Intheiranalysisisconsideringthereservoir–damandfoundation–daminteractionwascrackpro.Figure1(c),crackinginthedamwillprovideanalysis.FenvesandVargas-LolialsostudiedPineflatdambyusingfracturemechanicscriteriaforcrackgrowthandsmearedcrackmodeltocrackexpand(UangandBertero,1990).TheyapplydifferentcoefficientsofTaftearthquakerecord,regardlessoftheeffectbyfoundation;PineFlatdamintwocaseswithandwithouttheeffectofthereservoirwasanalyzed.Inthisstudytheeffectofhydrodynamicpressureontheseismicbehaviorinthedamwiththecrackprofilespresented.Theresultsofthisanalysiswereshownin
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