玻璃微珠-環(huán)氧輕質(zhì)復(fù)合材料的制備及力學(xué)性能預(yù)報(bào).pdf

1、哈爾濱工程大學(xué)碩士學(xué)位論文玻璃微珠環(huán)氧輕質(zhì)復(fù)合材料的制備及力學(xué)性能預(yù)報(bào)姓名：宋超申請學(xué)位級(jí)別：碩士專業(yè)：材料物理與化學(xué)指導(dǎo)教師：喬英杰201203哈爾濱工程大學(xué)碩士學(xué)位論文AbstractRecentlycompositesofhollowglassbubblefilledepoxywerewidelyusedinaerospaceandoceandetectingindustryduetotheirlowdensityhighstre

2、ngthandotherpropertyAndthemechanicalpropertyisalwaystheconcernofpeople，whichisdeterminedbytheirmacroperformanceSoitisofgreatimportancetoestablishethepredictionmodelofthismaterial’SmechanicalpropertyfrommacrostructureInth

3、ispaperthecompositesamplesofdifferentHGBvolumefractionweremanufactured謝thglassbubblefilledE51epoxyandharder594，throughstircastingprocessThemicroballoonsweremodifiedusingsilanecouplingagentThenthecomposite’Scompressivepro

4、pertyandfailuremodelwerestudiedthroughmechanicalanalysisandscanningeleetronmicroscope(SEM)Meanwhile，theelasticandstrengthpredictionmodelwerededucedthroughdifferentialmethodandfmiteelementmethod(FEM)Theresultsshowthatthec

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6、ecomposites、析tllfractionbelow55％failthroughshearyieldingofthematrixWhenthefractionisabove55％，compositesfailduetotheinteractiveinfluenceofmatrix’Sshearyieldingandmicroballoons’crushingThepredictionmodelofelasticpropertyis

7、deduced，usingdifferentialscheme，whichiseffecfivewhenmicroballoonvolumefractionisbelow63％Itisfoundthattheoreticalpredictionsareinagreementwiththeexperimentalresults，withtheerrorwithin10％Thestressdistributionofcomposite’Su

8、nitcellmodelisanalysizedItisshowedtIlatthereisgreatstressconcentrationinthecomposite’SinnerandthemaximumstressinthemicroballoonistentimestheloadThenthestrengthofcompositeisanalysizedthroughthestressdistributioncontourThe

9、theoreticalresultsarewellinagreementwimexperimentdatawiththeerrorbellow102％Inthisresearch，thepredictionmethodsofHGB／epoxycomposite’Selasticandstrengthpropertywereestablished，whichcanrevealtherelationshipbetweenthemicrome