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was studied in the hot-compression procedure. The experimental results show that the relation of peak flow stress, strain rate and temperature can be described by Z parameter which contains... Hot-compression constitutive relation of as-cast AZ31 magnesium alloy SHI Ti(史褆), YU Kun(余琨), LI Wen-xian(黎文献), WANG Ri-chu(王日初), WANG Xiao-yan(王晓艳), CAI Zhi-yong(蔡志勇) School of Materials......
by fuzzy grey relation method E Jia-qiang(鄂加强)1, 2, WU Jiang-hua(吴江华)1, LIU Teng(刘腾)1, 2, CHEN Jing-wei(陈敬炜)1, 2,DENG Yuan-wang(邓元望)1, 2, PENG Qing-guo(彭庆国)1, 2 1. College of Mechanical and Vehicle... combustion efficiency of the hydrogen have been analyzed by the FLUENT with CHEMKIN reaction mechanisms and the fuzzy grey relation theory. It is showed that inlet velocity has a more intuitive influence......
theory and surface layer model, relation of flow stress to billet dimension and grain size was built, and rationality of derived relation was verified with tensile tests of different size billets. With derived expressions, relation of decreasing flow stress scale effect to billet dimension, grain size as well as billet shape was discussed and predicted. The results show that flow stress is proportional......
J. Cent. South Univ. (2017) 24: 1344-1350 DOI: 10.1007/s11771-017-3538-1 Short-term travel flow prediction method based on FCM-clustering and ELM WANG Xing-chao(王星超)1, HU Jian-ming(胡坚明)2, LIANG Wei... University Press and Springer-Verlag Berlin Heidelberg 2017 Abstract: Short-term travel flow prediction has been the core of the intelligent transport systems (ITS). An advanced method based on fuzzy C......
The testing time of S-p relation for a single complete drainage could be controlled to be less than 60 min (shown in Fig.5), which was dependent on the water flow speed inside the sand sample controlled... to their low invest, our online dynamic method may accord with the actual water flow condition more closely in porous media. 4 Conclusions (1) A distinct monotonic nonlinear relation exists between......
Mathematical Model and Theoretical Research of Flow Shear Constitutive Relation during Rheo-rolling of Semisolid Alloy赵占勇1,管仁国1,2,3,WEI Qing1,ZHANG Yang1,XU Guangming1,LI Yuandong21. Key Laboratory..." name="ChDivSummary">The mathematical model of flow shear constitutive relation during rheo-rolling process has been established. The distribution of velocity and shear stress in rolling cavity......
J. Cent. South Univ. Technol. (2010) 17: 1376-1382 DOI: 10.1007/s11771-010-0645-7 Deduction and experimental investigation of constitutive relation of liquefaction of saturated sand WANG Xing-hua..., on the basis of Handin-Drnevich model, a new calculating model of the dynamic constitutive relation of saturated sand was put forward. The model was based on the basic hypothesis of instantaneous limit......
Trans. Nonferrous Met. Soc. China 22(2012) 2370-2378 Effect of flow stress-strain relation on forming limit of 5754O aluminum alloy WANG Hai-bo1, WAN Min2, YAN Yu1 1. College of Mechanical...; accepted 8 August 2012 Abstract: A modified Swift type flow stress-strain relation was presented in order to describe the uniaxial tension test curve reasonably. The FLD-strain (forming limit diagram made......
pressure. The L-M relation was suitable for low flow velocity. The limitation of this method was that the influence of mass velocity, pipe diameter, pressure, and flow direction on the frictional pressure drop was not considered. Therefore, there would inevitably be great deviations when the L-M relation was applied to different flow conditions. In 1967, CHISHOLM [17] obtained experimental data......
in significant deformation inhomogeneity and non-ignorable error in the flow stress strain relation,invalidating the uniform strain assumption commonly assumed when extracting the constitutive...Refining constitutive relation by integration of finite element simulations and Gleeble experimentsD.J.Yu,D.S.Xu,H.Wang,Z.B.Zhao,G.Z.Wei,R.Yang摘 要:Thermo......