Study on Connectivity Performance of Granule Considering Granule Morphology

This study, based on the analysis on granule morphology and the connectivity performance of granule, establishes the method of analyzing the connectivity performance among granules of different morphologies. Moreover, the stiffness matrix of connectivity among granules is also obtained, and the influence of different types of connectivity on the granule packing system is investigated. It is found that the granule morphology is the decisive factor affecting the performance and type of connectivity among granules. Therefore, granule morphology parameter is also the decisive factor affecting the parameter of connectivity performance of granule. The size of contact area between granules, the value of granule expansion coefficient and the granule size (distance) are the major parameters affecting the connectivity performance among granules. Considerable difference exists in performance between point-contact type and surface-contact type. The connectivity performance of point-contact type is subject to the effect of the acting force among the granules to a certain extent, while that of surface-contact type is far less influenced by the acting force. The system of surface-contact type is more stable.