Journal of Mechanical Engineering >

2018 , Vol. 54 >Issue 10: 85 - 92

DOI: https://doi.org/10.3901/JME.2018.10.085

Quantitative Investigation on Force Chains of Metal Powder in High Velocity Compaction by Using Discrete Element Method

  • ZHANG Wei ,
  • ZHOU Jian ,
  • YU Shiwei ,
  • ZHANG Xuejie ,
  • LIU Kun
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  • Institute of Tribology, Hefei University of Technology, Hefei 230009

Received date: 2017-06-10

  Revised date: 2017-12-23

  Online published: 2018-05-20

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Abstract

As the meso-scale structure of powder granular system, force chains play a role as a link between micro movement of powder and macroscopic mechanical properties. The number, length, strength and collimation coefficient of force chains of metal powder in high velocity compaction (HVC) have been investigated quantitatively by using discrete element method (DEM). The difference of force chains between HVC and conventional compaction (CC) have been investigated. The different influential factors for force chains in HVC have also been analyzed. This investigation shows that the number, length, strength and collimation coefficient of force chains have changed more quickly in HVC than in CC. What's more, the initial conditions of force chains in HVC and CC are different. In HVC process, the characteristics of force chains for powder particles of μ=0 and μ≠0 are quite different. Although systems with different initial porosity have distinct characteristics of force chains during process, their final conditions are almost the same in the end. The variation in the characteristics of force chains is more drastic with the increasing of impact velocity. This investigation would expand the theoretical basis about phenomenon of densification and density homogenization of powder in HVC based on force chains.

Key words： metal powder; high velocity compaction; force chains; quantization; discrete element method (DEM)

Cite this article

ZHANG Wei , ZHOU Jian , YU Shiwei , ZHANG Xuejie , LIU Kun . Quantitative Investigation on Force Chains of Metal Powder in High Velocity Compaction by Using Discrete Element Method[J]. Journal of Mechanical Engineering, 2018 , 54(10) : 85 -92 . DOI: 10.3901/JME.2018.10.085

References

[1] 孙其诚,王光谦. 颗粒物质力学导论[M]. 北京:科学出版社,2009. SUN Qicheng,WANG Guangqian. Introduction of mechanics of granular materials[M]. Beijing:Science Press,2009.
[2] BOOTH A M,HURLEY R,LAMB M P,et al. Force chains as the link between particle and bulk friction angles in granular material[J]. Geophysical Research Letters,2014,41(24):8862-8869.
[3] HURLEY R C,HALL S A,ANDRADE J E,et al. Quantifying interparticle forces and heterogeneity in 3D granular materials[J]. Physical Review Letters,2016,117(9):098005.
[4] TORDESILLAS A,SHI J Y,TSHAIKIWSKY T. Stress-dilatancy and force chain evolution[J]. Int. J. Numer. Anal. Meth. Geomech,2011,35(2):264-292.
[5] ZHANG L,WANG Y J,ZHANG J. Force-chain distributions in granular systems[J]. Physical Review E,2014,89(1):012203.
[6] MENG F J,LIU K,WANG W. The force chains and dynamic states of granular flow lubrication[J]. Tribology Transactions,2015,58(1):70-78.
[7] BASSETT D S,OWENS E T,PORTER M A,et al. Extraction of force-chain network architecture in granular materials using community detection[J]. Soft Matter,2015,11(14):2731-2744.
[8] ZHANG L,NGUYEN N G H,LAMBERT S,et al. The role of force chains in granular materials:from statics to dynamics[J]. European Journal of Environmental and Civil Engineering,2017,21(7-8):874-895.
[9] GUO P J. Critical length of force chains and shear band thickness in dense granular materials[J]. Acta Geotechnica,2012,7(1):41-55.
[10] GUSTAFSSON G,NISHIDA M,HAGGBLAD H A,et al. Experimental studies and modelling of high-velocity loaded iron-powder compacts[J]. Powder Technology,2014,268(1):293-305.
[11] ZHANG H Z,ZHANG L,DONG G Q,et al. Effects of annealing on high velocity compaction behavior and mechanical properties of iron-base PM alloy[J]. Powder Technology,2016,288(2):435-440.
[12] YAN Z Q,CHEN F,CAI Y X. High-velocity compaction of titanium powder and process characterization[J]. Powder Technology,2011,208(3):596-599.
[13] 李达. 铁基粉末高速压制的数值模拟分析[D]. 合肥:合肥工业大学,2014. LI Da. Numerical simulation analysis of high-speed compaction of iron-based powder[D]. Hefei:Hefei University of Technology,2014.
[14] 王爽,郑洲顺,周文. 粉末高速压制成形过程中的应力波分析[J]. 物理学报,2011,60(12):128101. WANG Shuang,ZHENG Zhoushun,ZHOU Wen. The pressure wave analysis in high velocity compaction process[J]. Acta Physica Sinica,2011,60(12):128101.
[15] 易明军,尹海清,曲选辉, 等. 力与应力波对高速压制压坯质量的影响[J]. 粉末冶金技术,2009,27(3):207-211. YI Mingjun,YIN Haiqing,QU Xuanhui,et al. Influence of force and stress wave on the quality of green compacts in high velocity compaction[J]. Powder Metallurgy Technology,2009,27(3):207-211.
[16] 张清东,张雍,李瑞,等. 带钢冷轧机工作辊表面粗糙峰轧制磨损过程离散元法研究[J]. 机械工程学报,2016,52(6):72-78. ZHANG Qingdong,ZHANG Yong,LI Rui,et al. Simulation of the rolling wear of work roll surface asperities during strip cold rolling by discrete element method[J]. Journal of Mechanical Engineering,2016,52(6):72-78.
[17] 唐德威,李鹏,姜生元,等. 基于离散元的模拟月岩切削负载特性数值模拟及试验验证[J]. 机械工程学报,2016,52(15):192-203. TANG Dewei,LI Peng,JIANG Shengyuan,et al. Numerical simulation of lunar rock simulant cutting load based on discrete element modeling and experimental validation[J]. Journal of Mechanical Engineering,2016,52(15):192-203.
[18] 肖望强,黄玉祥,李威,等. 颗粒阻尼器配置对齿轮传动系统动特性影响[J]. 机械工程学报,2017,53(7):1-12. XIAO Wangqiang,HUANG Yuxiang,LI Wei,et al. Influence of particle damper configurations on the dynamic characteristic for gear transmission system[J]. Journal of Mechanical Engineering,2017,53(7):1-12.
[19] 黄培云. 粉末冶金原理(第2版)[M]. 北京:冶金工业出版社,2004. HUANG Peiyun. Powder metallurgy principle[M]. Beijing:Metallurgical Industry Press,2004.
[20] Itasca Consulting Group. PFC2D (Particle flow code in 2dimensions) (Version 3.1)[M]. Minneapolis, Minn,USA:Itasca Consulting Group,2004.
[21] 黄晚清,陆阳. 散粒体重力堆积的三维离散元模型[J].岩土工程学报,2006,28(12):2139-2143. HUANG Wanqing,LU Yang. 3D DEM simulation of random packing of particulates under gravity[J]. Chinese Journal of Geotechnical Engineering,2006,28(12):2139-2143.
[22] RADJAI F,WOLF D E,JEAN M,et al. Bimodal character of stress transmission in granular packings[J]. Physical Review Letter,1998,80(1):61-64.
[23] SUN Q C,JIN F,LIU J G. Understanding force chains in dense granular materials[J]. International Journal of Modern Physics B,2010,24(29):5743-5759.
[24] WANG J Z,QU X H,YIN H Q,et al. High velocity compaction of ferrous powder[J]. Powder Technology,2009,192(1):131-136.
[25] 邓三才,肖志瑜,陈进,等.粉末冶金高速压制技术的研究现状及展望[J]. 粉末冶金材料科学与工程,2009,14(4):213-217. DENG Sancai,XIAO Zhiyu,CHEN Jin,et al. Development of high velocity compaction technology in powder metallurgy[J]. Materials Science and Engineering of Powder Metallurgy,2009,14(4):213-217.
[26] HUANG Y M,DANIELS K E. Friction and pressure- dependence of force chain communities in granular materials[J]. Granular Matter,2016,18(85):1-11.
[27] 李元元. 金属粉末温压成形原理与技术[M]. 广州:华南理工大学出版社,2008. LI Yuanyuan. Principle and technology of warm compaction of metal powders[M]. Guangzhou:South China University of Technology Press,2008.
[28] YAN Z Q,CHEN F,CAI Y X,et al. Influence of particle size on property of Ti-6Al-4V alloy prepared by high-velocity compaction[J]. Trans. Nonferrous Met. Soc. China,2013,23(2):361-365.
[29] 何杰,肖志瑜,关航健,等. 纯钛粉高速压制行为及其烧结性能研究[J]. 粉末冶金技术,2016,34(3):178-183. HE Jie,XIAO Zhiyu,GUAN Hangjian,et al. High velocity compaction behavior and sintered properties of pure Ti powder[J]. Powder Metallurgy Technology,2016,34(3):178-183.
[30] WANG J Z,YIN H Q,QU X H. Analysis of density and mechanical properties of high velocity compacted iron powder[J]. Acta Metallurgica Sinica,2009,22(6):447-453.
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