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obtained. The results show that the stress and strain distributions strongly depend on the distribution and gradient of the oil film pressure. The maximum shear stress occurs at the interface between the bearing alloy layer and steel base. The sign of strain changes at the maximum stress gradient. Key words: journal bearing; oil film pressure; finite difference method; stress; strain  ......
ON THE TENSILE MECHANICAL PROPERTY OF Si-Mn TRIP STEELS AT HIGH STRAIN RATE W.Shi1,X.C.Wei1,L.Li1,R.Y.Fu1 (1.School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China) Abstract:Tensile mechanical properties of 1.6Si-1.58Mn-0.195C TRIP (transformation-inducedplasticity) steels under high strain rate and effects of DP (dual-phase) treatments werestudied......
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on modified strain gradient theory[J]. Composite Structures, 2014, 115(1): 41-50. (编辑 陈灿华) 收稿日期:2015-03-10;修回日期:2015-05-08 基金项目(Foundation item):国家自然科学基金资助项目(51305157);吉林省科技厅基金资助项目... finite element method for free vibration analysis of functionally gradient piezoelectric cantilevers CAI Bin1, ZHOU Liming2 (1. School of Civil Engineering, Jilin Jianzhu University, Changchun 130118......
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J. Cent. South Univ. Technol. (2008) 15(s1): 043-046 DOI: 10.1007/s11771-008-311-5 Constitutive model depending upon temperature and strain rate of carbon constructional quality steels YANG Liu... the same temperature and different strain rates, and the same strain rate and different temperatures were done on 20 steel, 35 steel and 45 steel. 52 groups of rheological stress-strain curves were......
J. Cent. South Univ. Technol. (2008) 15(s1): 447-452 DOI: 10.1007/s11771-008-397-9 Mechanical model for yield strength of nanocrystalline materials under high strain rate loading ZHU Rong-tao(朱... and Engineering, Nanjing University of Technology, Nanjing 210009, China) Abstract: To understand the high strain rate deformation mechanism and determine the grain size, strain rate and porosity dependent......
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strength (632 MPa), lower the compressive elastic modulus (9 GPa) and excellent superelastic recovery strain (>4%), but also shows good in vitro biological activity. Key words: NiTi gradient alloy...; NiTi/表面多孔Ti梯度合金坯体的制备流程图 Fig. 1 Schematic diagram of green bodies fabrication process of NiTi/surface porous Ti gradient alloy 利用金相显微镜观察了梯度合金的中间基体,表面多孔层及界面的形貌,图4所示为不同烧结温度下NiTi/表面多孔Ti梯度合金的光学显微照片.从图4可......
Through-thickness texture gradient of tantalum sputtering targetChao Deng,Shi-Feng Liu,Xiao-Bo Hao,Jing-Li Ji,Qing Liu,Hai-Yang FanCollege of Materials Science and Engineering, Chongqing University摘... gradient of a rolled and subsequently annealed tantalum sputtering target was investigated. The results show that by carefully controlling the rolling process, shear-related components at the surface......