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1、MechanicsofMaterialCOUSE：MechanicsofMaterialACADEMICCREDIT/TIME：4/56EXPERIMENTSTIME：8MAJOR：civilengineeringⅠCOUSECONTENTANDOBJECTIVESCourseContentToday'ssocietygoesaboutonmanycivilengineeringworkssuchasroad,airport,harbor.Thesedamageanddestructionhave
2、possibilityofnotonlymanyhindrancestodailylife,containthedangerwhichkillmanyhumanlivesinthecitywherepopulationconcentrates.Weareadvancingtheresearchworksinordertocontributetothecreationofsafetyandcomfortablesociety,regardingthesafetyandfunctionalevalua
3、tiontechnologyofthematerialforcivilstructuresbycombiningnumericalanalysisandexperimentaltrial,andthediagnostictechniqueofinsidestateofthecivilstructures.FractureMechanismandRockMechanicsWhatistheessenceofthephenomenon;astructuredeteriorates,isdamageda
4、ndreachestodestruction?Asforthisphenomenonnotjustthecivilstructuresinmanycases,itisknownthatthephenomenonis"growthofminutefracture".Thestartingpointofthegrowthphenomenonoffractureisverysmallcomparedtothewholestructure.Forexample,peelingofadhesionofthe
5、boundarybetweenthereinforcingandtheconcreteinthereinforcedconcrete,orfatiguecrackamongmetallicmaterialsaresuitabletothat.Theygrowupinthematerialorthecomponentastimepasses,andbecomefataldamagethreatenthefunctionalityandsafetyofthewholestructure.Ascanbe
6、seeninthephotograph,arockmassinvolvescomplicatedmicrostructuresthatconsistofvariouskindsofrocksanddiscontinuities.Weneedtospecifythemechanicalpropertiesofsucharockmassindesigningstructuresconstructedin/onit,suchastunnel,largecavernforpowerhouseandrock
7、slope,etc.Itisveryhard,however,toobtaintestspecimensincludingsufficientnumberofdiscontinuitiessoastoberegardedastherepresentativevolumeelementsoftherockmass,sincethesizesofdiscontinuitiescharacterizingthemicrostructuresaretoolarge.Theevaluationoftheme
8、chanicalpropertiesofarockmassisaformidabletaskthathaslongbeenbotheringpeoplewhoareengagedingeotechnicalengineering.Inordertogiveasolutiontothisproblem,wehavebeenstudyingaschemeofmulti-scaleanalysisbaseonamathematicalhomogenizationtheory.Thesch
