岩石破碎过程可视化数值模拟

英文篇名：Visualized Numerical Simulation of the Process of Rock Breaking
中文刊名：矿业研究与开发
英文刊名：Mining Research and Development
作者：邱流潮 ; 卢海 ; 何姝杰
英文作者：Qiu Liuchao1 ; Lu Hai2 ; He Shujie3(1.Department of Applied Mechanics ; China Agricultural University ; Beijing 100083 ; China ; 2.Yunnan Institute of Traffic Planning and Design ; Kunming ; Yunnan 650011 ; China ; 3.Peking University ; Beijing 100084 ; China)
中文关键词：岩石破碎 ; 巴西圆盘实验 ; 可视化数值模拟 ; 耦合有限元-离散元法
英文关键词：Rock breaking ; Brazilian disc test ; Visualized numerical simulation ; Coupled finite-discrete element method.
出版日期：2010-10-31
机构：中国农业大学应用力学系;云南省交通规划设计研究院;北京大学;
年：2010
期：05
出版单位：矿业研究与开发

摘要

采用有限元与离散元耦合数值方法开展岩石破碎过程可视化数值模拟。通过对巴西圆盘实验的数值计算,再现了岩石的破坏机理和破坏模式以及岩石裂缝萌生、裂缝扩展以及完全破坏的全过程。分析结果验证了这种数值方法分析岩石变形与破坏过程的可行性。
Visualized numerical simulation the process of rock breaking was carried out by coupled finite-discrete elements method.Through calculating data from Brazilian disc test,the failure mechanisms and failure patterns of rock and the whole failure process of rock from initiation and propagation of cracks to completely breaking were represented.The numerical results showed that the coupled finite-discrete elements method is suitable for the analysis of deformation and failure process of rock.

引文

[1]W C Zhu,C A Tang.Numerical simulation of Brazilian disk rock failure under static and dynamic loading[J].International Jour-nal of Rock Mechanics&Mining Sciences,2006,43:236～252.
    [2]Cundall P A.A computer model for simulating progressive large scale movements in blocky rock systems[M].Nancy,Proceed-ings of the International Symposium Rock Fracture,ISRM,1971.
    [3]王泳嘉,邢纪波.离散单元法及其在岩土力学中的应用[M].沈阳:东北工学院出版社,1991.
    [4]张楚汉,金峰,周元德.岩石和混凝土离散-接触-断裂分析[M].北京:清华大学出版社,2008.
    [5]李世海,高波,燕琳.三峡永久闸高边坡开挖三维离散元数值模拟[J].岩土力学,2002,23(3):272～277.
    [6]C A Tang.Micromechanical Model for Simulating the Fracture Process of Rock,Rock Mech[J].Rock Engng,2004,37:25～56.
    [7]Munjiza A,Owen D R J,Bicanic N.A combined finite-discrete element method in transient dynamics of fracturing solids[J].Engineering Computations,1995,12:145～174.
    [8]唐志平.激光辐照下充压柱壳失效的三维离散元模拟[J].爆炸与冲击,2001,21(1):127.
    [9]胥建龙,唐志平.离散元与有限元结合的多尺度方法及其应用[J].计算物理,2003,20(6):477.
    [10]邱流潮.基于联合有限-离散元法的混凝土重力坝地震破坏过程仿真[J].水力发电,2009,35(5):36～38.
    [11]Munjiza A,Andrews K R F,White J K.Combined Single And Smeared Crack Model In Combined Finite-Discrete Element A-nalysis[J].Int.J.Numer.Meth.Engng,1999,44:41～57.
    [12]W F Chen.Plasticity in Reinforced Concrete[M].McGrawHill,New York,1982.