個別要素法解析による粒子特性が異なる粒状体中の微細構造の発達・消滅過程の考察

抄録

The considerably non-linear deformation behavior of granular materials is controlled by grain properties and microstructure formed. Grain properties are assigned by grain shape and resistant friction angle between grains. Microstructures in granular material are formed as contact paths of grains. In this paper, the deformations of granular media with different grain shapes and friction properties were simulated by DEM in twodimension. On the basis of analysis results and observation of the formation of microstructure under isotropic compression and bi-axial shear, the relationships between macro deformation and the formation process of microstructures were discussed in detail.