简介：这份报纸学习多相的thermoelasticcomposites的有效性质。把免费精力和吉布斯基于Helmholtz多相的composites的单个阶段，有效有弹性的张肌，热扩大的张肌，和特定的热的免费精力借助于体积一般水准被导出这些阶段免费精力。特别强调以经常紧张、经常压力的状况，修改Eshelby的micromechanics理论在被开发被放在有效的特定的热的新分析表情的推导上，在包括之间的相互作用被考虑。作为一个解说性的例子，为三阶段的thermoelastic的有效的特定的热的分析表示合成被介绍。

简介：现在的文章为预言碳nanotubecomposites的传导性改进提供分析模型的以前的工作的增补信息。模型相当简单，能在传导性改进上考虑CNT添加剂的传导性anisotropy，非笔直，和方面比率的效果合成并且给与存在试验性的数据同意很好的预言。这个模型的省略详细推导与更系统的分析在现在的文章被表明，它可以在这个方向帮助做好进一步的开发。而且，CNT的各种各样的取向分布的效果第一次这里被报导。信息可能在设计或为更好或指定的传导性的CNTcomposites的制造技术是有用的。

简介：Theeffectivethermalconductivityofmatrix-inclusion-microcrackthree-phaseheterogeneousmaterialsisinvestigatedwithaself-consistentmicromechanicalmethod（SCM）andarandommicrostructurefiniteelementmethod（RMFEM）,IntheSCM,microcracksareassumedtoberandomlydistributedandpen-ny-shapedandinclusionstobespherical,thecrackeffectisaccountedforbyintroducingacrackdensitypa-rameter,theeffectivethermalconductivityisderivedwhichrelatesthemacroscopicbehaviortothecrackdensityparameter.IntheRMFEM,thehighlyirregularmicrostructureoftheheterogeneousmediaisaccu-ratelydescribed,theinteractionamongthematrix-inclusion-microcracksisexactlytreated,theinclusionshapeeffectandcracksizeeffectareconsidered.ANi/ZrO2particulatecompositematerialcontainingran-domlydistributed,penny-shapedcracksisexaminedasanexample.Themainresultsobtainedare:（1）theeffectivethermalconductivityissensitivetothecrackdensityandexhibitsessentiallyalinearrelationshipwiththedensityparameter;（2）theinclusionshapehasasignificanteffectontheeffectivethermalconductiv-ityandapolygon-shapedinclusionismoreeffectiveinincreasingordecreasingtheeffectivethermalconduc-tivitythanasphere-shapedone;and（3）theSCMandRMFEMarecomparedandthetwomethodsgivethesameeffectivepropertyinthecaseinwhichthematrixthermalconductivityλ,isgreaterthantheinclusiononeλ2.Intheinversecaseofλ1<λ2,thetwomethodsagreeastheinclusionvolumefractionandcrackdensityarelowanddifferastheyarehigh.Areasonableexplanationfortheagreementanddeviationbetweenthetwomethodsinthecaseofλ1<λ2ismade.