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浏览/检索结果: 共5条，第1-5条 帮助

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Molecular dynamics simulation of phosphoric acid-based geopolymer 期刊论文  OAI收割
JOURNAL OF SOLID STATE CHEMISTRY, 2022, 卷号: 312, 期号: -, 页码: -
作者:  Huang, Kangqiao;  Zhou, Wei
  |  收藏  |  浏览/下载：16/0  |  提交时间：2023/08/02
Elevating the fracture toughness of Cu49Hf42Al9 bulk metallic glass: Effects of cooling rate and frozen-in excess volume 期刊论文  OAI收割
Intermetallics, 2014, 卷号: 46, 页码: 164-172
Z. D. Zhu; E. Ma; J. Xu
收藏  |  浏览/下载：22/0  |  提交时间：2014/03/14
Study on the difference between turfy soil and normal peat soil in China (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Vibration, Structural Engineering and Measurement, ICVSEM2011, October 21, 2011 - October 23, 2011, Shanghai, China
作者:  Nie L.
收藏  |  浏览/下载：38/0  |  提交时间：2013/03/25
As the special soil  turfy soil and peat soil in China contained some similar properties with high void ratio  high water content  high organic content  etc. But turfy soil also had properties which difference from peat soil. In this paper  based on the formation of the cause and geological environment and geomorphologic characteristics of geological in the quaternary  took the typical and widespread turfy soil and peat soil regions for example  systematically discussed the material composition and macroscopic and microcosmic structural features  put further research on the physical chemistry mechanical characteristics. Then the come to the conclusion that the essential reason for difference between turfy soil and peat soil were decomposition degree and organic content. The result that worse engineering properties such as higher the moisture content  porosity  compressibility  internal cohesion and the lower specific weight  consolidation coefficient and permeability were due to the lower decomposition degree and higher organic content of turfy soil than peat soil. It can provide reference to the practical projects of turfy soil to distinguish peat soil according to this characteristic. (2012) Trans Tech Publications.  
Dome design and coupled thermal-mechanical analysis of supersonic missile (EI CONFERENCE) 会议论文  OAI收割
2009 International Conference on Optical Instruments and Technology, OIT 2009, October 19, 2009 - October 22, 2009, Shanghai, China
Xing-qiao A.; Qun W.; Hong-guang J.
收藏  |  浏览/下载：54/0  |  提交时间：2013/03/25
A review of high-speed flow pressure and aerodynamic heating effect on Supersonic missile's dome is given. The dome should have excellent properties in optical  mechanical and chemical characteristics. A design of dome on supersonic mode is described according to tactical guide line of a missile. The dome made of quartz which is about 8mm thick and 141mm in window diameter. To check up the reliability of the dome  a reasonable finite element model (FEM) of dome is established  and a thermal-mechanical Analysis to the dome by finite element software NASTRAN has carried on  through these can obtained the distribution of temperature field and stress field when the speed is 2.3Ma. The results indicated that the stress was concentrated in the joint of the dome end and the Missile Section  and the maximum stress was 16.4Mpa. The stress of other nodes was smaller than the allowable stress of quartz glass. Reference to the results of the analysis  a lightweight revision to the dome structural dimension and a new method of dome fixing have put forward  which can reduce the stress concentration. 2009 SPIE.  
High-resolution image simulation of overlap structures in TiAl alloy 期刊论文  OAI收割
Journal of Alloys and Compounds, 2009, 卷号: 468, 期号: 1-2, 页码: 179-186
C. L. Chen; W. Lu; Y. Y. Cui; L. L. He; H. Q. Ye
收藏  |  浏览/下载：21/0  |  提交时间：2012/04/13