中国科学院机构知识库网格系统: 检索

Evolution of interface voids and columnar grains of the FeCrAl/RAFMs HIP bonding joint 期刊论文 OAI收割
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2024, 卷号: 915
作者: Du, Pei-Song; Wang, Wan-Jing; Wang, Ji-Chao; Xu, Hua-Qi; Wang, Qiao-ling

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收藏 | 浏览/下载：13/0 | 提交时间：2024/11/20

The FeCrAl/RAFMs joint HIP diffusion bonding Interfacial voids Interfacial columnar grains Mechanical properties

Effects of gradient nanostructures on the tribological properties and projectile abrasion during high-speed penetration in AerMet100 steel 期刊论文 OAI收割
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2023, 卷号: 25, 页码: 5871-5887
作者: Wu, Haijun; Wang, Kehui; Yang, Hui; Shen, Zikai; Cai, Song

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收藏 | 浏览/下载：21/0 | 提交时间：2024/01/07

Surface mechanical grinding treatment Gradient nanostructure Tribological properties High-speed penetration Mass loss of the projectiles

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; Hu, Haixiang; Liu, Xinghong; Chang, Xiaolin

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收藏 | 浏览/下载：18/0 | 提交时间：2023/08/02

Phosphoric acid-based geopolymer (PABG) Molecular dynamics (MD) simulation The modified Dreiding force field The new macromolecular model Structural and mechanical properties

The effects of crystallinity on the mechanical properties and the limiting PV (pressure x velocity) value of PTFE 期刊论文 OAI收割
Tribology International, 2016, 卷号: 93, 页码: 1-10
作者: Song FZ(宋富智); Wang QH(王齐华); Wang TM(王廷梅)

收藏 | 浏览/下载：27/0 | 提交时间：2016/02/02

Crystallinity The limiting PV value Mechanical properties Tribological behaviors

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：41/0 | 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.

Study of the neural network constitutive models for turfy soil with different decomposition degree (EI CONFERENCE) 会议论文 OAI收割
2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011, July 15, 2011 - July 17, 2011, Inner Mongolia, China
作者: Nie L.

收藏 | 浏览/下载：20/0 | 提交时间：2013/03/25

The turfy soil is of a special humus soil. The decomposition degree is the main factor on the physical and mechanical properties of turfy soil. To build the turfy soil constitutive model there are a few shortages such as the calculation cumbersome and low accuracy for parameter value with the method of traditional models. Furthermore those methods did not reflect the influence of strength that effected by decomposition degree of the turfy soil. In this paper the relationship of stress-strain with different decomposition degrees of turfy soil was carried out through indoor tests. Based on above experimental results an improved method which divided into different zones according to different decomposition degrees of turfy soil and calculated combining with neural network constitutive model is put forward. The result shows that the neural network of turfy soil has good fitting precision and good generalization ability. It can fully describe the influence of the turfy soil. 2011 IEEE.

Research on servo controller for high speed tracking system (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Mechatronic Systems and Automation Systems, MSAS 2011, July 23, 2011 - July 24, 2011, Xi'an, China
作者: Li M.

收藏 | 浏览/下载：17/0 | 提交时间：2013/03/25

To meet requirement of swiftness and minimization for the tracking system as well as realize horizontal high accuracy tracking measurement the automatic servo tracking measurement system has been designed. The two closed loop control bisection method and compound control have been applied into the system. Experimental results show that the maximum tracking error can be limited to less than 0.5and the regulator time can be 0.04s. The control project resonance frequency should be more than 200Hz and the sample frequency should be more than 400Hz to meet the control accuracy requirement. And these specific mechanical properties indexes are useful to mechanical working to make sure the design can be realization. So the research in this paper has important value to the engineering practice. (2011) 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：60/0 | 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.

Synthesis and characteristics of 80 vol.% tungsten (W) fibre/Zr based metallic glass composite 期刊论文 OAI收割
Intermetallics, 2009, 卷号: 17, 期号: 12, 页码: 1070-1077
H. F. Zhang; H. Li; A. M. Wang; H. M. Fu; B. Z. Ding; Z. Q. Hu

收藏 | 浏览/下载：51/0 | 提交时间：2012/04/13

Glasses metallic Bonding Composites based on the metallic glass matrix Mechanical testing matrix composites mechanical-properties fracture-behavior dynamic deformation shear bands bulk phase plasticity interface property

Deformation and fracture behaviors of Co-based metallic glass and its composite with dendrites 期刊论文 OAI收割
Intermetallics, 2009, 卷号: 17, 期号: 6, 页码: 445-452
J. T. Fan; Z. F. Zhang; S. X. Mao; B. L. Shen; A. Inoue

收藏 | 浏览/下载：16/0 | 提交时间：2012/04/13

Glasses metallic Composite based on the metallic glass matrix intermetallics miscellaneous Deformation map Fracture toughness Mechanical properties at ambient temperature mechanical-properties plastic-deformation amorphous-alloys transition ductile damage brittleness zones