中国科学院机构知识库网格
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Size effects and strength fluctuation in nanoscale plasticity 期刊论文  OAI收割
Acta Materialia, 2012, 卷号: 60, 期号: 8, 页码: 3302-3309
W. Wang; Y. Zhong; K. Lu; L. Lu; D. L. McDowell; T. Zhu
收藏  |  浏览/下载:18/0  |  提交时间:2013/02/05
Numerical simulation on efficient spinning technology based on multi-point adjusting principle (EI CONFERENCE) 会议论文  OAI收割
2nd International Conference on Manufacturing Science and Engineering, ICMSE 2011, April 9, 2011 - April 11, 2011, Guilin, China
Gong X. P.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
In order to realize high efficiency and flexible manufacturing for rotary surfaces  equivalent stress in sheet metal's center region and bendable rollers active region exceeds yield stress  efficient spinning technology (EST) is researched. It is the combination of multi-point forming and traditional spinning. Principle of EST is described  and plastic deformation is generated  traditional spinning method is compared with it  experimental result accords with simulation result. Feasibility of EST is validated by simulation and experimental results. (2011) Trans Tech Publications.  and characteristics of it are analyzed. Finite element analysis (FEA) model of disc-shape part is established  EST process is analyzed  equivalent stress and plastic strain distributions are analyzed. EST equipment is developed  and the experiments are made. Results indicate: EST process consists of four stages  
Surface shape optimization for the space membrane reflector (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
作者:  
Zhang Y.;  Zhang P.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
Space membrane reflector is very promised for optical quality application with the merits of ultra-lightweight and flexible. In order to improve the surface precision of membrane reflectors  the formation and surface shape error of a membrane at uniform load are studied based on the henky-cambell equations of circular membrane. The ANSYS software is used to build an optimization model of membrane reflector surface shape  in which the yield strength is the state variable  the surface load on ten concentric annular regions of the mirror is the design variable  and the minimum RMS between ideal surface and mirror surface is the target function. and the theoretical and experimental result show that RMS and PV of the optimized surfaces are reduced respectively than those before optimization. In a word  this paper offers the theoretical and experimental basis of the polyimide membrane reflector. 2011 IEEE.  
Discussion on the use of parameters of Drucker-Prager criterion 会议论文  OAI收割
Bali, INDONESIA, APR 04-06, 2005
作者:  
Wang, SL;  Jiao, YY;  Xiao, HB;  Li, CG
  |  收藏  |  浏览/下载:18/0  |  提交时间:2018/06/05
Metallic Rb4C60 and Rb5C60 on the top layer of C-60 single crystal 期刊论文  OAI收割
SURFACE SCIENCE, 2003, 卷号: 540, 期号: 2-3, 页码: L631-L637
作者:  
Li, HN;  Kui RX(奎热西);  Liu FQ(刘凤琴);  Kurash, I;  Liu, FQ
收藏  |  浏览/下载:28/0  |  提交时间:2016/06/29