基于内聚力模型的铝丁羟胶粘接界面力学研究.docx

基于内聚力模型的铝丁羟胶粘接界面力学研究
Title:MechanicalInvestigationoftheAlkylatedHydroxyethylCellulose-AluminumBondingInterfaceBasedonCohesiveZoneModeling
Abstract:
Theadhesiveinterfacebetweenaluminumandalkylatedhydroxyethylcellulose(AlkylHEC)playsacriticalroleindeterminingthemechanicalperformanceanddurabilityofbondedstructures.Inthisstudy,weemployacohesivezonemodelingapproachtoinvestigatetheinterfacemechanicsofAlkylHEC-basedadhesivebonding.Thecohesivezonemodelsimulatesthebehaviorofthebondinginterfacebyintroducingacohesivetraction-separationrelationship,whichreflectstheadhesiveinteractionsattheinterfaces.Throughextensivenumericalsimulationsandexperimentalvalidations,theeffectsofkeyparameters,suchasadhesivethickness,surfaceroughness,andcuringtemperature,onthemechanicalpropertiesoftheadhesive-Albondareexamined.TheresultsprovidevaluableinsightsintothemechanicsofAlkylHEC-Albondingandguidetheoptimizationofthebondingprocessforenhancedstructuralperformance.
Introduction:
Adhesivebondinghasemergedasaversatileandefficientmethodforjoiningmaterialsacrossarangeofindustries.Inparticular,theuseoforganicadhesiveshasgainedsignificantattentionduetotheirdesirablepropertiessuchaslowcost,lightweight,andinherentcorrosionresistance.Alkylatedhydroxyethylcellulose(AlkylHEC)isatypeoforganicadhesivethatexhibitsstrongadhesiontovarioussubstrates,includingaluminum.ThemechanicalperformanceofAlkylHEC-basedadhesivejointsishighlydependentonthebondinginterfacebetweentheadhesiveandaluminum.Understandingthemechanicsofthisinterfaceiscrucialfordesigningrobustadhesivejointswithsuperiormechanicalproperties.
Methodology:
ThecohesivezonemodelingapproachisutilizedtoinvestigatetheAlkylHEC-Albondinginterface.Thisapproachconsiderstheadhesivebehaviorwithinanarrowregionsurroundingtheinterface,knownasthecohesivezone.Thecohesivezoneischaracterizedbyatraction-separationrelationship,whichdescribestheadhesiveforcesasafunctionoftheseparationbetweentheadhesiveandaluminum.Toaccuratelycapturetheinterfacebehavior,avarietyofcohesivezonemode