摘要
Anin-depthinvestigationismadeontheproblemofanarc-shapedinterfaceinsulatingcrackinathree-phaseconcentriccircularcylindricalpiezoelectriccompositeconstitutivemodel.Anexactsolutioninseriesformisderivedbyemployingthecomplexvariablemethod.Inaddition,thedistributionofphysicalquantitiessuchasstresses,strains,electricdisplacementsandelectricfieldsinthewholefieldandalongtheinterfaceisalsopresented.Explicitexpressionsforcrackopeningdisplacement,jumpinelectropotentialonthecracksurfaceandtheelectro-elasticfieldintensityfactorsatthecracktipsareobtained.Specificcalculationsdemonstratethattheconvergenceoftheseriesformsolutionissatisfactoryandthattheouterphase(compositephase)willexertasignificanteffectontheelectro-mechanicalcouplingresponseofthecompositesystem.Owingtothefactthatstressesandelectricdisplacementsstillpossessconventionalinversesquarerootsingularities,theoscillatingsingularitiesnearthecracktipunderplanestrainconditionswillbeabsentand,asaresult,nounphysicalinterpenetrationphenomenonofthetwocracksurfaceswilloccur.Inconclusion,theelasticsolutionobtainedisalsobasedonasolidphysicalfoundation.
出版日期
2001年02月12日（中国Betway体育网页登陆平台首次上网日期，不代表论文的发表时间）
