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New double yield surface model for coarse granular materials incorporating nonlinear unified failure criterionLIU Meng-cheng(刘萌成)1,2, LIU Han-long(刘汉龙)1, GAO Yu-feng(高玉峰)1(1. State Key Laboratory..., China)Abstract:A new double-yield-surface (DYS) model was developed to characterize the strength and deformation behaviors of coarse granular materials (CGMs). Two kinds of deformation mechanisms......
Application of geometric midline yield criterion to analysis of three-dimensional forging ZHAO De-wen(赵德文), WANG Gen-ji(王根矶), LIU Xiang-hua(刘相华), WANG Guo-dong(王国栋) State Key Laboratory...-dimensional forging. The linear yield criterion expressed by geometric midline of error triangle between Tresca and Twin shear stress yield loci on the p-plane, called GM yield criterion for short......
J. Cent. South Univ. (2012) 19: 2520-2527 DOI: 10.1007/s11771-012-1305-x Element yield rate prediction in ladle furnace based on improved GA-ANFIS XU Zhe(徐喆)1, 2, MAO Zhi-zhong(毛志忠)1, 2 1. School... 110819, China ? Central South University Press and Springer-Verlag Berlin Heidelberg 2012 Abstract: The traditional prediction methods of element yield rate can be divided into experience method and data......
microscope, X-ray diffractometer and transmission electron microscope,respectively. Mechanical property measurements indicate that the yield strength of the surface layer raises significantly while the tensile strength somewhat changes and the elongation percentage reduces severely compared with that of the inside layer. Meanwhile, yield-drop-like phenomenon occurs in the surface layer after SMA......
viscosity and yield stress of the GB/hydroxyl terminated polybutadiene (HTPB) suspensions were determined by Brookfield R/S rheometer. The effect of surface treatment on the viscosity and yield stress of GB... coupling agents, such as γ-glycidoxypropyltrimethoxy silane (GPTES) and γ-methacryloxypropyltrimethoxy silane (MPTMS), respectively. The effect of surface treatment on the viscosity and yield stress of GB......
yield the size dependent behavior of nanowires.Key words:geometric nonlinearity; nanowires; bending; nanowires; bending; surface effect...Surface effects on large deflection of nanowiresYang fan(杨帆)1, 2(1. Department of Mechanics, Xi’an University of Science and Technology, Xi’an 710054, China;2. Department of Engineering Mechanics, Xi......
of the yield surface in principal stress space. They will be transformed into hexagon when b=0 or b=1, and into dodecagon when 01 or b<0, which indicates that the unified yield criterion theory can... of Powder Metallurgy, Central South University, Changsha 410083, China ? Central South University Press and Springer-Verlag Berlin Heidelberg 2011 Abstract: The yield behavior of metallic glasses......
Surface treatment of 3D outside serrated integral-fin tube manufactured by rolling and extrusion BAI Peng-fei(白鹏飞), LIU Xiao-kang(刘小康), YAN Hui(燕 辉), TANG Biao(唐 彪) School of Mechanical...-extrusion processing were surface-treated through different processes of annealing in hydrogen atmosphere, electrochemical corrosion or sandblasting. The purpose was to eliminate residual stress, clear......
Characterization of Yield Stress Development of Cement Paste by Electrical ResistivityMbujje Joel Webster1,魏小胜1,ZHOU Kongjin21. School of Civil Engineering and Mechanics, Huazhong University of Science and Technology2. State Key Laboratory of Silicate, Wuhan University of Technology摘 要:Yield stress development of cement paste is potentially governed......
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