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Four numerical methods, i.e., purely Continuum based Finite Element Method (C-FEM), Discrete Element Method (DEM), Discrete particle based Finite Element Method (D-FEM) and combination of FEM and DEM (FEM-DEM), were explored through numerical examples of steel sphere normally impacting on the sand target at 100 m/s and 200 m/s velocities. Comparing computing efficiencies and precisions of the methods, it is shown that FEM-DEM is the most suitable to simulate problems of sand target penetration.

, authors=Xiao-Hu LIU, Tao ZHU, authorsList=Xiao-Hu LIU, Tao ZHU, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322983236544111548, articleId=1322983236149846970, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=颗粒体侵彻数值计算方法研究, columnId=0, journalTitle=高压物理学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

分别采用连续体有限元方法、离散元方法、离散颗粒有限元方法和有限元-离散元混合方法,对钢球以100 m/s和200 m/s的速度侵彻细沙石回收靶过程进行了数值计算,通过对4种方法的计算精度和计算效率的比较分析,表明有限元-离散元方法更适合于颗粒材料侵彻问题的数值计算。

, authors=刘小虎, 祝涛, authorsList=刘小虎, 祝涛, authorCompany=null, correspAuthors=null, authorNote=

刘小虎(1968—),男,博士,教授,主要从事计算力学研究. E-mail:

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刘小虎(1968—),男,博士,教授,主要从事计算力学研究. E-mail:

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颗粒体侵彻数值计算方法研究
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刘小虎 , 祝涛
高压物理学报 | 2010,24(1): 21-25
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高压物理学报 | 2010 , 24 (1) : 21 -25
颗粒体侵彻数值计算方法研究
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刘小虎 , 祝涛
作者信息
  • 华中科技大学力学系,湖北 武汉 430074
作者简介:

刘小虎(1968—),男,博士,教授,主要从事计算力学研究. E-mail:

Study on Numerical Methods for Particle Material Penetration Problems
Xiao-Hu LIU , Tao ZHU
Affiliations
  • Department of Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China
出版时间: 2010-02-15
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分别采用连续体有限元方法、离散元方法、离散颗粒有限元方法和有限元-离散元混合方法,对钢球以100 m/s和200 m/s的速度侵彻细沙石回收靶过程进行了数值计算,通过对4种方法的计算精度和计算效率的比较分析,表明有限元-离散元方法更适合于颗粒材料侵彻问题的数值计算。

侵彻  /  颗粒材料  /  软回收  /  离散元  /  有限元

Four numerical methods, i.e., purely Continuum based Finite Element Method (C-FEM), Discrete Element Method (DEM), Discrete particle based Finite Element Method (D-FEM) and combination of FEM and DEM (FEM-DEM), were explored through numerical examples of steel sphere normally impacting on the sand target at 100 m/s and 200 m/s velocities. Comparing computing efficiencies and precisions of the methods, it is shown that FEM-DEM is the most suitable to simulate problems of sand target penetration.

penetration  /  particle material  /  soft recycle  /  discrete element  /  finite element
刘小虎, 祝涛. 颗粒体侵彻数值计算方法研究. 高压物理学报, 2010 , 24 (1) : 21 -25 .
Xiao-Hu LIU, Tao ZHU. Study on Numerical Methods for Particle Material Penetration Problems[J]. Chinese Journal of High Pressure Physics, 2010 , 24 (1) : 21 -25 .
  • 国家自然科学基金(10672066)
参考文献 引证文献
排序方式:
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Liu X H, Liu J, Wang C, et al. Experimental Studies on the Projectile Penetrating Normally into a Plain Concrete[J]. Explosion and Shock Waves, 1999, 19(4): 324-328. (in Chinese)
刘小虎, 刘吉, 王乘, 等. 弹丸低速垂直侵彻无钢筋混凝土的实验研究[J]. 爆炸与冲击, 1999, 19(4): 324-328.
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Gu X H, Wang X M, Chen H W, et al. Experimental Study on the Kinetic Energy Penetrations against Semi-Infinite Concrete Targets[J]. Journal of Experimental Mechanics, 2004, 19(1): 103-108. (in Chinese)
顾晓辉, 王晓鸣, 陈惠武, 等. 动能侵彻体垂直侵彻半无限厚混凝土靶的试验研究[J]. 实验力学, 2004, 19(1): 103-108.
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Xu P, Zu J, Fan J B. Study on Acceleration Test Technique of High Velocity Kinetic Energy Projectile Penetrating[J]. Journal of Vibration and Shock, 2007, 26(11): 118-122. (in Chinese)
徐鹏, 祖静, 范锦彪. 高速动能弹侵彻硬目标加速度测试技术研究[J]. 振动与冲击, 2007, 26(11): 118-122.
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Belytschko T, Liu W K, Moran B. Nonlinear Finite Elements for Continua and Structures[M]. Chichester, England: John Wiley & Sons Ltd, 2000.
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Cundall P A, Strack O D L. A Discrete Numerical Model for Granular Assemblies[J]. Geotech, 1979, 29(1): 47-65.
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Tang Z P. 3D Discrete Element Method and Its Applications in Impact Mechanics[J]. Science in China, Series E, 2003, 33(11): 989-998. (in Chinese)
唐志平. 三维离散元方法及其在冲击力学中的应用[J]. 中国科学(E辑), 2003, 33(11): 989-998.
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2010年第24卷第1期
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  • 接收时间:2009-04-27
  • 首发时间:2026-10-30
  • 出版时间:2010-02-15
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  • 收稿日期:2009-04-27
  • 修回日期:2009-07-26
基金
国家自然科学基金(10672066)
作者信息
    华中科技大学力学系,湖北 武汉 430074
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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