典型文献
A modified discrete element method for concave granular materials based on energy-conserving contact model
文献摘要：
The development of a general discrete element method for irregularly shaped particles is the core issue of the simulation of the dynamic behavior of granular materials. The general energy-conserving contact theory is used to establish a universal discrete element method suitable for particle contact of arbitrary shape. In this study, three dimentional (3D) modeling and scanning techniques are used to obtain a trian- gular mesh representation of the true particles containing typical concave particles. The contact volume- based energy-conserving model is used to realize the contact detection between irregularly shaped par- ticles, and the contact force model is refined and modified to describe the contact under real conditions. The inelastic collision processes between the particles and boundaries are simulated to verify the ro- bustness of the modified contact force model and its applicability to the multi-point contact mode. In addition, the packing process and the flow process of a large number of irregular particles are simu- lated with the modified discrete element method (DEM) to illustrate the applicability of the method of complex problems.
文献关键词：
中图分类号：
作者姓名：
Ting Qiao;Ji Li;Shunying Ji
作者机构：
State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,China
文献出处：
引用格式：
[1]Ting Qiao;Ji Li;Shunying Ji-.A modified discrete element method for concave granular materials based on energy-conserving contact model)[J].力学快报（英文）,2022(02):92-97
A类：
B类：
modified,discrete,element,method,concave,granular,materials,energy,conserving,contact,development,general,irregularly,shaped,particles,core,issue,simulation,dynamic,behavior,theory,used,establish,universal,suitable,arbitrary,In,this,study,three,dimentional,modeling,scanning,techniques,are,obtain,trian,mesh,representation,true,containing,typical,volume,realize,detection,between,force,refined,describe,under,conditions,inelastic,collision,processes,boundaries,simulated,verify,bustness,its,applicability,multi,point,addition,packing,flow,large,number,DEM,illustrate,complex,problems
AB值：
0.454704
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
