Numerical Simulation for Rock Fracturing Process under Action of Disc Cutter

被引：0
|
作者：
Cao, Lijuan [1 ]
Li, Shouju [2 ]
Shangguan, Zichang [3 ]
机构：
[1] Dalian Ocean Univ, Sch Mech & Power Engn, Dalian, Peoples R China
[2] Dalian Univ Technol, State Key Lab Struct Anal Ind Euipment, Dalian, Peoples R China
[3] Dalian Ocean Univ, Inst Civil Engn, Dalian, Peoples R China
来源：
MATERIAL DESIGN, PROCESSING AND APPLICATIONS, PARTS 1-4 | 2013年 / 690-693卷
关键词：
Rock fracturing process; Nonlinear finite element method; Penetration depth; Specific energy; Disc cutter distribution;
D O I：
10.4028/www.scientific.net/AMR.690-693.3054
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Three-dimensional dynamic fracture process of rock under action of disc cutter is simulated by using nonlinear finite element method. Rock constitutive relationship is characterized by Drucker-Prager model. The influences of disc angular velocity and vertical force on the penetration depth and the specific energy are systematically investigated. The simulation results show that the rock fracturing process obviously presents properties of step crushing under action of disc cutter. The proposed numerical simulation presents an improvement on existing ones in terms of providing three-dimensional visual description of rock fracturing process.
引用
收藏
页码：3054 / +
页数：2
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