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《Engineering Mechanics》 2002-01
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WANG Fu-jun , CHENG Jian-gang , YAO Zhen-han , HUANG Cun-jun, KOU Zhe-jun (Department of Engineering Mechanics, Tsinghua University, Beijing 10084)  
A new algorithm for contact searching and computation of contact forces in crashworthiness analysis of structures is presented. The concepts of cell and linked-list are introduced to perform the global contact searching. The total cost of the search is reduced from O(Nlog2N) to O(N). Because the free-surface patch is used to model the contact surface, the accuracy of local contact searching increases and the dead-zone problem is resolved. In this new algorithm, the global and local searching processes are combined into one for the utilization in finite-element code. The contact force algorithm proposed in this paper is compatible with the explicit integration scheme, and the contact constraint conditions are well satisfied. Numerical results are given to demonstrate the performance of the new algorithm.
【Fund】: 国家自然科学基金资助项目(59875045);; 汽车安全与节能国家重点实验室项目(K9705);; 清华大学校985重点基金项目(JC200020)
【CateGory Index】: O302
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1 Guo Yizhi~1 Jin Xianlong~1 Ding Junhong~1Cao Wenhong~2 Chen Hong~2(High Performance Computing Center,Shanghai Jiao Tong University,Shanghai 200030,China)~1(Shanghai Tunnel Engineering & Rail Transit Design And Research Institute,Shanghai 200070,China)~2;Three-Dimensional Contact Model and Algorithm for Earthquake Response of Immersed Tunnel[J];Chinese Journal of Applied Mechanics;2006-01
Chinese Journal Full-text Database 4 Hits
1 WANG Fujun1, LI Yaojun1, Han K.2 & Feng Y.T.2 1. College of Water Conservancy and Civil Engineering, China Agricultural University, Beijing 100083, China; 2. Civil & Computational Engineering Centre, University of Wales Swansea, Swansea SA2 8PP, U.K.;A general finite element model for numerical simulation of structure dynamics[J];中国科学(G辑:物理学 力学 天文学)(英文版);2006-04
2 Kou Zhejun, Cheng Jiangang, Yao Zhenhan (Department of Engineering Mechanics, Tsinghua University,Beijing 100084, China);Study of scalable parallel computation for contact-impact problems[J];Chinese Journal of Computational Mechanics;2003-03
3 Wang Fujun Wang Liping Cheng Jiangang Yao Zhenhan (College of Water Conservancy & Civil Engineering, China Agricultural University, Beijing, 100083, China) (School of Aerospace, Tsinghua University, Beijing 100084, China);A CONTACT ALGORITHM FOR PARALLEL COMPUTATION OF FEM[J];Chinese Journal of Theoretical and Applied Mechanics;2007-03
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Chinese Journal Full-text Database 10 Hits
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3 LEI Zhengbao1, LONG Jianqiang2(1.Changsha Communications University,Changsha 410076,China; 2.Guangxi Communications Profession Technique Institute, Nanning 530023, China);Unresolved Problems in CAE Technology for Automobile Collision Analysis[J];Journal of Changsha Communications University;2003-03
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7 LIU Hong-yu, ZHAO Han, LIANG Jin-hua (Institute of Economic and Technology, University of Science & Technology of China, Hefei 230052, China; College of Mechanical & Auto Engineering, Hefei University of Technology, Hefei 230009, China);Analysis of durability & inflexion strength of micro-segment gear[J];Journal of University of Shanghai For Science and Technology;2003-03
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9 DING Nenggen (Dept. of Automotive Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China);Automatic generation of 3D finite element mesh and contact elements for helical gears[J];Journal of Hefei University of Technology(Natural Science);2003-05
10 Lin Huabao (Chinese Academy of Space Technology, Beijing 100081);LANDING IMPACT ATTENUATION TECHNOLOGIES REVIEW[J];Spacecraft Recovery & Remote Sensing;1996-03
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1 ZHAO Shiping1,ZENG Xiangguo1,YAO Anlin2,WANG,Qingyuan1,SHI Xiaoshuang1,XING Yifeng1(1.College of Architecture and Environment,Sichuan University,Chengdu610065,China;2.College of Civil Engineering and Architecture,Southwest Petroleum University,Chengdu610500,China);Dynamic response numerical simulation of buried gas pipeline during third-party interference[J];Sichuan Building Science;2009-01
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5 YANG Yan-zhi~(1a),JING Xian-long~(1b),GU Yun~2,QIAO Zong-zhao~3,YANG Zhi-hao~3(1a.School of Mechanical Engineering;1b.State Key Laboratory of Mechanical System and Vibration,Shanghai Jiaotong University,Shanghai 200240,China;2. Shanghai Qing Cao Sha Raw Water Engineering Company,Shanghai 200082;3.Shanghai Tunnel Engineering & Rail Transit Design and Research Institute,Shanghai 200072,China);Application of Hybrid-Model Method in Ultra-Large Water Conveyance Tunnel[J];Journal of Shanghai Jiaotong University;2011-04
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7 Zhang Yongjian1,2 Jin Xianlong2 Wang Jianwei2 Cao Yuan2 Zhang Chunyan1(1 Changshu Institute of Technology,Changshu 215500;2 Shanghai Jiaotong University,Shanghai 200240);Research on the Initial Stress Field around a Tunnel based on the Principle of Dynamic Relaxation[J];Modern Tunnelling Technology;2010-04
8 QU Zhi-ming1,LIANG Xiao-ying1,ZHOU Xin-quan2,SHI San-yuan1 1. School of Civil Engineering,Hebei Engineering University,Handan 056038,China;2. State Key Laboratory of Coal Resource and Safe Mining,China University of Mining and Technology,Beijing 100083,China;Crack propagation of Mg-Li alloys by impact load[J];中国有色金属学会会刊(英文版);2007-S1
9 WENG Yi-liu 1,JIN Xian-long 1,2,GU Yun 3,YANG Zhi-hao 4(1.School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China;2.State Key Laboratory of Vibration,Shock & Noise,Shanghai Jiaotong University,Shanghai 200240,China;3.Shanghai Qing Cao Sha Raw Water Engineering Co.,Ltd,Shanghai 200000,China;4.Shanghai Tunnel Engineering & Rail Transit Design and Research Institute,Shanghai 200070,China);A multi-mesh FE modeling method for nonlinear dynamic analysis of a super-large-scale tunnel structure[J];Journal of Vibration and Shock;2011-07
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2 Liu Weiguo1 Yao Anlin2,Li Youlü2,Chen Huayan2,Zeng Xiangguo1(1 College of Architecture and Environmental,Sichuan University,Chengdu 610065,China;2 School of civil engineering and architecture,Southwest Petroleum University,Chengdu 610500,China;);SAFETY ASSESSMENT OF HIGH PRESSURE BURIED GAS PIPELINE WITH CRACK UNDER IMPACT LOADING[A];[C];2010
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