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J. Cent. South Univ. Technol. (2009) 16: 0677-0682 DOI: 10.1007/s11771-009-0112-5 Energy consumption in rock fragmentation at intermediate strain rate HONG Liang(洪 亮)1, 2, ZHOU Zi-long(周子龙)1...; Abstract: In order to determine the relationship among energy consumption of rock and its fragmentation, dynamic strength and strain rate, granite, sandstone and limestone specimens......
Predicting configuration performance of modular product family using principal component analysis and support vector machineZHANG Meng(张萌), LI Guo-xi(李国喜), GONG Jing-zhong(龚京忠), WU Bao-zhong(吴宝中... of principal component analysis (PCA) and support vector machine (SVM) was proposed. This method can estimate the performance parameter values of a newly configured product through soft computing technique......
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......
of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou 310058, China) Abstract: A series of tests with principal stress rotation were carried out on 5 Hz ZJU-HCA to investigate the dynamic characteristics of isotropically consolidated Hangzhou intact soft clay under wave loading. The dynamic characteristics such as the development of strain and degradation of modulus were......
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and enhance the integrity of the specimen. The first cracks initiate when the maximum principal strain at the crack tip of single crack specimen reaches its critical value and then stress redistribution occurs. After grouting reinforcement, the maximum principal strain increase with a relatively flat trend and the failure occur because of the deformation imbalance between the rock like materials......
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Jarosite-type precipitates mediated by YN22, Sulfobacillus thermosulfidooxidans, and their influences on strain DING Jian-nan(丁建南), GAO Jian(高 健), WU Xue-ling(吴学玲), ZHANG Cheng-gui(张成桂), WANG... of the precipitate on this species, a newly isolated strain (YN22) of S. thermosulfidooxidans was cultured in a medium containing Fe2+ as energy source under optimal conditions (pH 1.5, 53 ℃, 0.2 g/L yeast......
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......