›› 2011, Vol. 32 ›› Issue (9): 2852-2855.

• Numerical Analysis • Previous Articles     Next Articles

A generation method for numerical specimen of granular materials by sort of coordinates

CHU Xi-hua1, 2   

  1. 1. Department of Engineering Mechanics, Wuhan University, Wuhan 430072, China; 2. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
  • Received:2010-01-22 Online:2011-09-10 Published:2011-09-13

PDF (Chinese)

1065

Abstract: The mechanical behaviors of granular materials presented by discrete element method （DEM）based on discrete particle model are closely relative to its numerical specimen. The generation techniques for granular materials specimens has attracted comprehensive attentions with development of DEM in numerical simulation of granular materials. The object of this paper is how to generate a more dense granular assembly using random sequential analysis (RSA) model. For uniform grains, that is to say how to generate more number of grains in given region. Four modified RSA methods are suggested and discussed; numerical practices show that the more dense granular assembly will be generated by sort of coordinates based on RSA.

Key words: granular materials, numerical simulation, discrete element method, numerical specimen

CLC Number: 

  • O 241
[1] LI Fan-fan, CHEN Wei-zhong, LEI Jiang, YU Hong-dan, MA Yong-shang, . Study of mechanical properties of claystone based on plastic damage [J]. Rock and Soil Mechanics, 2020, 41(1): 132-140.
[2] XIA Kun, DONG Lin, PU Xiao-wu, LI Lu. Earthquake response characteristics of loess tableland [J]. Rock and Soil Mechanics, 2020, 41(1): 295-304.
[3] GUO Yuan-cheng, LI Ming-yu, ZHANG Yan-wei, . Incremental analytical method for prestressed anchor and soil nail wall composite support system [J]. Rock and Soil Mechanics, 2019, 40(S1): 253-258.
[4] YAN Guo-qiang, YIN Yue-ping, HUANG Bo-lin, ZHANG Zhi-hua, DAI Zhen-wei, . Formation mechanism and deformation characteristics of Jinjiling landslide in Wushan, Three Gorges Reservoir region [J]. Rock and Soil Mechanics, 2019, 40(S1): 329-340.
[5] KUANG Du-min, LONG Zhi-lin, ZHOU Yi-chun, YAN Chao-ping, CHEN Jia-min, . Prediction of rate-dependent behaviors of cemented geo-materials based on BP neural network [J]. Rock and Soil Mechanics, 2019, 40(S1): 390-399.
[6] LIU Hong-yan. Influence of macroscopic and mesoscopic flaws on mechanical behavior of rock mass and slope stability [J]. Rock and Soil Mechanics, 2019, 40(S1): 431-439.
[7] JIN Ai-bing, LIU Jia-we, ZHAO Yi-qing, WANG Ben-xin, SUN Hao, WEI Yu-dong, . Mechanical characteristics analysis of granite under unloading conditions [J]. Rock and Soil Mechanics, 2019, 40(S1): 459-467.
[8] HAN Zheng, SU Bin, LI Yan-ge, WANG Wei, WANG Wei-dong, HUANG Jian-ling, CHEN Guang-qi, . Smoothed particle hydrodynamic numerical simulation of debris flow process based on Herschel-Bulkley-Papanastasiou constitutive model [J]. Rock and Soil Mechanics, 2019, 40(S1): 477-485.
[9] WU Mei-su, ZHOU Cheng, WANG Lin, TAN Chang-ming, . Numerical simulation of the influence of roots and fissures on hydraulic and mechanical characteristics of the soil [J]. Rock and Soil Mechanics, 2019, 40(S1): 519-526.
[10] WU Jin-liang, HE Ji, . Composite element model for dynamic excavation simulation of rock slope [J]. Rock and Soil Mechanics, 2019, 40(S1): 535-540.
[11] WU Feng-yuan, FAN Yun-yun, CHEN Jian-ping, LI Jun, . Simulation analysis of dynamic process of debris flow based on different entrainment models [J]. Rock and Soil Mechanics, 2019, 40(8): 3236-3246.
[12] SUN Feng, XUE Shi-feng, PANG Ming-yu, TANG Mei-rong, ZHANG Xiang, LI Chuan, . 3D simulation of fracture growth from perforation to near-wellbore in horizontal wells based on continuum damage model [J]. Rock and Soil Mechanics, 2019, 40(8): 3255-3261.
[13] MU Rui, PU Shao-yun, HUANG Zhi-hong, LI Yong-hui, ZHENG Pei-xin, LIU Yang, LIU Ze, ZHENG Hong-chao, . Determination of ultimate bearing capacity of uplift piles in combined soil and rock masses [J]. Rock and Soil Mechanics, 2019, 40(7): 2825-2837.
[14] JIN Jun-chao, SHE Cheng-xue, SHANG Peng-yang. A nonlinear creep model of rock based on the strain softening index [J]. Rock and Soil Mechanics, 2019, 40(6): 2239-2246.
[15] WANG Yun-jia, SONG Er-xiang. Discrete element analysis of the particle shape effect on packing density and strength of rockfills [J]. Rock and Soil Mechanics, 2019, 40(6): 2416-2426.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] TANG Ming-ming, WANG Zhi-yin, MA Lan-ping, ZENG Zhi-hua, ZHANG Zhi-pei. Study of design parameters of oil-gas pipeline traversing loess gully[J]. , 2010, 31(4): 1314 -1318 .
[2] LIN Hang，CAO Ping，LI Jiang-teng，JIANG Xue-liang，HE Zhong-ming. Deformation stability of three-dimensional slope based on Hoek-Brown criterion[J]. , 2010, 31(11): 3656 -3660 .
[3] RAN Long, HU Qi. Analysis of seepage failure of deep foundation pit in silty sand[J]. , 2009, 30(1): 241 -245 .
[4] LI Jun-cai，JI Guang-qiang，SONG Gui-hua，ZHANG Qiong，WANG Zhi-liang，YAN Xiao-min. In-situ measurement and analysis of sparse pile-raft foundation of high-rise building[J]. , 2009, 30(4): 1018 -1022 .
[5] NIU Wen-jie，YE Wei-min，LIU Shao-gang，YU Hai-tao. Limit analysis of a soil slope considering saturated-unsaturated seepage[J]. , 2009, 30(8): 2477 -2482 .
[6] WANG Ke-liang, LIU Ling, SUI Tong-bo , XU Yun-hai, HU Ting-zheng. Experiment research on anti-shear(cut)performance of dam bedrock-rubber powder modified concrete in-situ[J]. , 2011, 32(3): 753 -756 .
[7] LIN Da-ming1,2，SHANG Yan-jun1，SUN Fu-jun3，SUN Yuan-chun1,2，WU Feng-bo1,2，LIU Zhi. Study of strength assessment of rock mass and application[J]. , 2011, 32(3): 837 -842 .
[8] DENG Dong-ping，LI Liang，ZHAO Lian-heng. A new method of sliding surface searching for general stability of slope based on Janbu method[J]. , 2011, 32(3): 891 -898 .
[9] WU Jian，FENG Shao-kong，LI Hong-jie. Study of automatically extracting structural plane parameters from borehole images[J]. , 2011, 32(3): 951 -957 .
[10] LI Jian-jun，SHAO Sheng-jun，YANG Fu-yin，YANG Chun-ming. Experimental research on impermeable characteristics of slurry cake in cutoff wall hole of coarse-grained soil[J]. , 2012, 33(4): 1087 -1093 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd