典型文献
Discrete element simulation of effects of multicontact loading on single particle crushing
文献摘要：
Particle crushing commonly occurs in granular materials and affects their structures and mechanical properties.Unlike idealized particles in experimental single particle crushing tests with two loading points,natural particles are crushed under multicontact loading.To date,the criteria and patterns of par-ticle crushing under multicontact conditions are not fully understood.By using the three-dimensional discrete element method,this report explores the effect of multicontact loading on the crushing criterion of a single particle,the crushing pattern,and the relationship between the particle crushing strength and loading distribution.The particles are modelled as aggregates of glued Voronoi polyhedra.The numer-ical results indicate that the logarithm of the mean principal stress has a good linear correlation with the coordination number.For a specific coordination number,the number of child particles presents a significant normal distribution.For a specific number of child particles,the volumes of child particles can be statistically described as normal or gamma distribution.Three typical models are proposed to qual-itatively analyse the relationship between the loading distribution and crushing strength.The relevant conclusions can be helpful in engineering practice and in further studies on crushable granular materials via the discrete element method.
文献关键词：
中图分类号：
作者姓名：
Chuanfeng Fang;Zhihong Nie;Jian Gong;Bo Li;Wei Hu;Ashiru Mohammed
作者机构：
School of Civil Engineering,Central South University,Changsha 410075,China;College of Civil of Engineering and Architecture,Guangxi University,Nanning,530004,China;College of Architecture and Civil Engineering,Wenzhou University,Wenzhou 325035,China;Hunan Province Key Laboratory of Geotechnical Engineering Stability Control and Health Monitoring,Hunan University of Science and Technology,Xiangtan,411201,China
文献出处：
引用格式：
[1]Chuanfeng Fang;Zhihong Nie;Jian Gong;Bo Li;Wei Hu;Ashiru Mohammed-.Discrete element simulation of effects of multicontact loading on single particle crushing)[J].颗粒学报（英文版）,2022(10):49-60
A类：
multicontact,itatively
B类：
Discrete,element,simulation,effects,loading,single,crushing,Particle,commonly,occurs,granular,materials,affects,their,structures,mechanical,properties,Unlike,idealized,particles,experimental,tests,two,points,natural,are,crushed,To,date,criteria,patterns,conditions,not,fully,understood,By,using,three,dimensional,discrete,method,this,report,explores,criterion,relationship,between,strength,distribution,modelled,aggregates,glued,Voronoi,polyhedra,numer,results,indicate,that,logarithm,mean,principal,stress,has,good,linear,correlation,coordination,number,For,specific,child,presents,significant,normal,volumes,statistically,described,gamma,Three,typical,models,proposed,qual,analyse,relevant,conclusions,helpful,engineering,practice,further,studies,crushable,via
AB值：
0.508652
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