Numerical analysis of rock cutting based on fracture mechanics

JIANG Hong-xiang; DU Chang-long; LIU Song-yong; LIU Zeng-hui

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Numerical analysis of rock cutting based on fracture mechanics

更新时间：2026-06-25

- Numerical analysis of rock cutting based on fracture mechanics
- Vol. 34, Issue 4, (2013)
- 作者机构：
  
  中国矿业大学机电工程学院,江苏,徐州,221116
- 作者简介：
- 基金信息：
- DOI：
  CLC： TD42
- Online First：16 April 2013，
  
  Published：2013
- 稿件说明：
移动端阅览
JIANG Hong-xiang, DU Chang-long, LIU Song-yong, et al. Numerical analysis of rock cutting based on fracture mechanics[J]. 2013, 34(4).
DOI：

JIANG Hong-xiang, DU Chang-long, LIU Song-yong, et al. Numerical analysis of rock cutting based on fracture mechanics[J]. 2013, 34(4). DOI：

摘要

为研究岩石切削过程中刀具的力学特性以及刀具平均峰值作用力的预测，基于断裂力学和有限元理论建立了岩石切削的数值模型。模拟分析岩石对刀具的反作用过程，得到不同力学特性岩石和刀具作用条件下刀具所受的反作用力，结果表明，冲击速度在一定范围内对刀具平均峰值作用力影响较小；岩石体积呈阶跃性递减，刀具作用力大小与崩落岩石碎片体积变化一致。对模拟、实验以及已有理论计算得到的刀具平均峰值作用力进行线性回归分析，研究结果表明，数值方法计算结果与实验结果、Goktan[1]理论计算结果的线性相关系数分别为0.812、0.930，相关性较好，表明所建数值模型用于模拟岩石切削是正确和可靠的。

Abstract

In order to study the mechanical characteristics of the cutter in rock cutting process and the prediction of mean peak force reaction on the cutter

a numerical model of rock cutting is established based on the fracture mechanics and finite element theory. The process of the rock reaction on the cutter is simulated and investigated; and the reaction forces on the cutter are obtained with different rock mechanical characteristics and impacting conditions of the cutter. The results show that the impacting velocity within a certain range has less effect on the peck cutting force

the variation of reaction force is unanimous to rock volume changes with stepwise decreasing. The relationship of mean peak force reaction on the cutter obtained from simulations

experiments and theoretical models is investigated with the linear regression analysis. The results show good correlations that the linear correlation coefficients between numerical results and the results of experiments and Goktan’s theory are 0.812

0.930 respectively; and it is indicated that this numerical model is proper and feasible to simulate the rock cutting process.

关键词

Keywords

references

Views

1995

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

A numerical method to solve pore seepage problems based on element local coordinate system

Study of safety evaluation method for existing metro station structures

Study of fracture problem with extended finite element method

Application of numerical method of large deformation to soft rock engineering

A procedure for transiting FEM into DEM and its application

Related Author

WANG Li-xiang

LI Shi-hai

FENG Chun

GAO Bo

LI Zhi-ye

LI Kui

ZHAO Hong-bo

ZHANG You-liang

Related Institution

Institute of Mechanics, Chinese Academy of Sciences

Department of Tunnel and Underground Engineering, Southwest Jiaotong University

College of Civil Engineering, Henan Polytechnic University

State key Laboratory of Geomechanics and Geotechnical Engineering, Chinese Academy of Sciences

Engineering Faculty, China University of Geosciences

AI问答

⁰