基于实验的反演识别方法与粘接界面力学性能研究

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1、博士学位论文Ⅲ

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6、111f⋯圳⋯洲咖0Y1532002基于实验的反演识别方法与粘接界面力学性能研究Experiment-basedinverse／identificationmethodandresearchonadhesiveinterfacialmechanicsproperties一级学科：左堂学科专业：固签左堂作者姓名：王妲指导教师：直二涸麴援天津大学机械工程学院二零零八年八月ABSTRACTAdhesivestructureshavebeenwidelyusedfortechnol

7、ogicalapplications．Inordertoanalyzeandestimatethemechanicalpropertiesofrealadhesivestructures，itisnecessarytocharacterizeandpredicttheinterfacialmechanicalproperties．Withthedevelopmentofmodemexperimentalmechanics，thefull—fieldmeasuringinformationcallbeobtai

8、nedduringtheinterfacialmechanicalexperiments．However,itisdifficultindeterminingtheadhesiveinterfacialparametersdirectlyfromtheexperimentalresults．Atthesametime，basedonthedevelopmentofinterfacialmechanicalmodel，theoryoftheadhesiveinterfacialmechanicalanalysi

9、scanbeprovided．Consequently,anewsolvingtechniqueisdevelopedbasedontheresultsofexperimentalmeasurement，whichCaneffectivelycharacterizeandsolvenonlinear,multi—parameterproblems，throughcombiningtheexperimentalmeasurementandnumericalsimulation．Thefocusofthispap

10、eristostudyontheexperiment-basedinverse／identificationmethodandtime—dependentadhesiveinterracialmechanicalcharacterization．Basedontheexperimentalmeasurementdata，anovelexperiment．basedinverse／identificationtechniqueispresented．Combiningthemechanicalmodelandi

11、nverse／identificationtechnique，thebridgebetweenthedataspacewiththemodelanalysisisconstructedforidentifyingthecomplexinterfacialmechanicalparameters．Finally,independentexperimentalverificationisperformedandtheaccuracyoftheidentificationresultsCanbeeffectivel

12、yprovidedbycomparingtheindependentexperimentalresultswiththenumericalsimulationbasedontheidentificationparameters．Inthispaper,theexperiment-basedinverse／identificationtechniqueisappliedtothestudyoftime—dependentinterfacialmechanicalpropertiesinmetaladhesive

13、structureandsoftmaterialadhesivestructure．First，todescribethetime—dependentinterracialmechanicalpropertiesinadhesivestructure，anoveltime．dependentadhesiveinterfacialmechanicalmodeliSprovidedbasedontheN