Oblique impact breakage unification of nonspherical particles using discrete element method

扫码查看

原文链接

NETL
NSTL
万方数据

外文摘要：Particle breakage commonly occurs during processing of particulate materials,but a mechanistic model of particle impact breakage is not fully established.This article presents oblique impact breakage char-acteristics of nonspherical particles using discrete element method(DEM)simulations.Three different particle shapes,i.e.spherical,cuboidal and cylindrical,are investigated.Constituent spheres are agglomerated with bridging bonds to model the breakage characteristics under impact conditions.The effect of agglomerate shapes on the breakage pattern,damage ratio,and fragment size distribution is fully investigated.By using a newly proposed oblique impact model,unified breakage master surfaces are theoretically constructed for all the particle shapes under oblique impact conditions.The developed approach can be applied to modelling particulate processes where nonspherical particles and oblique impact breakage are prevailing.

外文关键词：

Breakage master curveNonspherical particleOblique impactEquivalent velocityDiscrete element method(DEM)Bonded contact model

作者：

Di Peng、LiGe Wang、Yuquan Lin、Chongqiang Zhu、Xizhong Chen、Zhihui Liu、Ruihuan Ge

展开 >

作者单位：

Shenzhen Research Institute of Shandong University,Shenzhen 518057,China

Institute of Foundation Engineering,China Academy of Building Research,Beijing 100013,China

Ubiquitous Particle Ltd.,Twickenham,London TW2 7AU,UK

Department of Smart Manufacturing and Engineering Software,School of Qilu Transportation,Shandong University,Jinan 250061,China

Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China

School of Transportation and Civil Engineering,Shandong Jiaotong University,Jinan 250357,China

School of Science and Engineering,University of Dundee,Dundee DD1 4HN,UK

Department of Chemical Engineering,School of Chemistry and Chemical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China

Department of Chemical and Biological Engineering,University of Sheffield,Sheffield S1 3JD,UK

展开 >

基金：

National Natural Science Foundation of China Excellent Young Scientists Fund Program(Overseas)Shandong Excellent Young Scientists Fund Program(Overseas)Shenzhen Science and Technology ProgramShenzhen Science and Technology ProgramShenzhen Science and Technology Program

项目编号：

YQ2023-222022HWYQ-020RCBS20200714114910354JCYJ20220530141016036GJHZ20200731095006019

出版年：

2024

DOI：

10.1016/j.partic.2023.11.012

颗粒学报(英文版)

中国颗粒学会　中国科学院过程工程研究所

颗粒学报(英文版)

CSTPCD

影响因子：0.632

ISSN：1674-2001

年,卷(期)：2024.90(7)