压缩试验中的土颗粒接触网络分析  

Analysis of soil particle contact network in compress test

作　　者：沈冲 李欣骏 陈斌 袁思莹 李鑫 杨骐杭 薛俊杰 Shen Chong;Li Xinjun;Chen Bin;Yuan Siying;Li Xin;Yang Qihang;Xue Junjie(Hangzhou Dajiangdong Urban Facilities Management Co.,Ltd.,Hangzhou Zhejiang 310015,China;Department of Civil Engineering,Hangzhou City University,Hangzhou Zhejiang 310005,China;Yangtze Delta Institute of Urban Infrastructure,Hangzhou Zhejiang 310005,China)

机构地区：[1]杭州大江东城市设施管养有限公司,浙江杭州310015 [2]浙大城市学院工程学院土木工程系,浙江杭州310015 [3]浙江省长三角城市基础设施科学研究院,浙江杭州310005

出　　处：《山西建筑》2024年第22期85-88,共4页Shanxi Architecture

基　　金：浙江省自然科学基金:复杂加卸载条件下散粒体应力变形的细观拓扑机制(LY22E090002)。

摘　　要：传统连续介质力学本质上属于宏观统计的力学理论,它不涉及颗粒介质的细观结构。而对于颗粒介质来说,具有典型的多尺度结构,仅凭宏观唯象描述不足以概括其复杂物理力学性质。使用离散元法,进行散粒体二维压缩试验,将复杂网络理论引入颗粒介质的研究中,通过复杂网络手段分析散粒体接触网络中的最大簇、配位数、网络直径等参数变化,进一步分析研究压缩试验中颗粒内部的力学特性。Traditional continuum mechanics is essentially a macro-statistical mechanical theory,which does not involve the microstructure of granular media.For granular medium,which has a typical multi-scale structure,it is not enough to describe its complex physical and mechanical properties only by macroscopic dimension description.Using the discrete element method,conduct two-dimensional compression tests on granular materials,introduce complex network theory into the study of granular media,analyze the changes in parameters such as maximum cluster,coordination number and network diameter in the contact network of granular materials through complex network methods,and further analyze and study the mechanical properties inside the particles during compression tests.

关 键 词：复杂网络 拓扑结构 压缩试验 散粒体 

分 类 号：TU411.3[建筑科学—岩土工程]