简介：这篇论文在小粒的材料的行为上论述micromechanical研究在下面限制砍使用一个三维的分离元素方法(DEM)。我们在DEM代码在球形的粒子之中把旋转抵抗看作说明粒子形状的效果的一个近似方法。在undrained下面砍，它被发现抵抗旋转可以帮助增加一个小粒的系统的shear力量并且提高它的抵抗到液化。在有不同起始的条件的小粒的系统的内部结构和anisotropy的进化描绘区分二张接触子网的一个清楚的bimodal字符。面对旋转抵抗，好关联在一种分析stress-force-fabric关系和DEM结果，正常力量anisotropy在起一个主导的作用之间被发现。在与小粒的anisotropy的关系的批评状态和液化状态的唯一的性质也被探索并且讨论。

简介：Theplasticanisotropyofsheetmetalisusuallycausedbypreferredorientationofgrains,developedbymechanicaldeformationandthermaltreatment.Inthepresentstudy,aTaylor-likepolycrystalmodelsuggestedbyAsaroandNeedlemanisappliedtoinvestigatetheevolutionoftheanisotropicbehaviorofafacecenteredcubic(FCC)polycrystallinemetal,whichithasundergoneaplane-straincompressionthatrationallysimulatesthecoldrollingprocessofFCCpolycrystallinepurealuminium.ByusingtheTaylor-likepolycrystalmodel,polefiguresareobtainedtodescribethetexturedevelopmentofpolycrystallineaggregateafterplane-straincompression,andthentheplasticanisotropyofpolycrystallineaggregateisevaluatedbystretchingthepolycrystallineaggregateindifferentdirectionintermofyieldstress.Accordingtotheresults,thecontoursoflongitudinalflowstressinthree-dimensionalorientationspacearegivenandanalyzed.ExperimentresultssimilartothepredictionofplanaranisotropycanbefoundintheliteraturewrittenbyTakahashietal.thatindirectlyshowthecorrectnessofthepredictionofnon-planarplasticanisotropybythisanalysis.