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DEM based 3D Numerical Simulation of Linear Disc Cutting Test
SUN Wei,GUO Li * #,HUO Junzhou
School of Mechanical Engineering, Dalian University of Technology,Dalian,116023
*Correspondence author
#Submitted by
Subject:
Funding: Specialized Research Fund for the Doctoral Program of Higher Education of China（No.No.20110041110029）
Opened online:29 April 2015
Accepted by: none
Citation: SUN Wei,GUO Li,HUO Junzhou.DEM based 3D Numerical Simulation of Linear Disc Cutting Test[OL]. [29 April 2015] http://en.paper.edu.cn/en_releasepaper/content/4639869
 
 
Linear disc cutting test is a traditional method to investigate rock fragmentation process under disc cutter. This paper presents a Distinct Element Method (DEM) based model to simulate rock fragmentation process induced by two disc cutters. Relationships between cutter displacement and vertical forcemicro crackscracked particles are analyzed. It is discovered that rock fragmentation is caused by a series of shear failure & tensile failure and tensile failure is predominant. Furthermore, chips formulated with these micro cracks propagating, and fragmentation is a accelerative process. Research on disc cutting is the basis of cutter design and cutter layout
Keywords:.Disc cutter; Distinct Element Method; Rock fragmentation
 
 
 

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