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New approach for modeling flow stress of aluminum alloy 6A10 considering temperature variation LI Xue-song(李雪松), WU Lai-zhi(伍来智), CHEN Jun(陈 军), ZHANG Hong-bing(张鸿冰) National Die...; Abstract: The flow stress behavior of aluminum alloy 6A10 was studied......
is around linear with the consolidation ratio in spite of the dynamic shear stress level. And the corresponding deviator strain is between 3% and 6%. The strain failure criterion can also be adopted...Dynamic strength characteristics and failure criteria of anisotropically consolidated silt under principal stress rotationSHEN Yang(沈扬)1, ZHANG Peng-ju(张朋举)1,2, XU Guo-jian(徐国建)1, LIU Han-long(刘汉龙)1......
effect on the deformation at the initial stage, and then becomes weak at the middle-final stage. When the ratio of elastic modulus or the slope of stress-strain curve to mass density becomes larger... modulus, is Poisson ratio, ρ is mass density, ET (=dσ/dε) is the slope of the stress-strain curve at plasticity stage, σ and ε are stress and strain, respectively. It is clear that the elastic......
precision, making up the deficiency of Wong-Reece model that mainly reflects longitudinal slip-sinkage. Key words: lunar rover; slip-sinkage; loose lunar soil; stress distribution; slip ratio ... stresses and shear stresses, by which the vertical load is balanced. The wheel sinkage relates to the vertical load and stress distribution, and the slip ratio primarily influences the stress distribution......
under different loading speeds. Fatigue equations of asphalt mixtures based on the nominal stress ratio and real stress ratio were established using fatigue tests under different loading frequencies. It was revealed that the strength of the asphalt mixture is affected by the loading speed greatly. It was also discovered that the fatigue equation based on the nominal stress ratio will change......
the normalized contact stress distribution ratio of σy /p* for the considered luting cement with three different elastic moduli. From Fig. 5, it is seen that the normalized contact stress distributions...J. Cent. South Univ. (2012) 19: 2115-2124 DOI: 10.1007/s11771-012-1253-5 Stress distributions on crown-luting cement-substrate system with finite element method S. SEN1, M. S. GULER1, C. GULER2 1......
J. Cent. South Univ. (2016) 23: 3256-3261 DOI: 10.1007/s11771-016-3391-7 Coupled effects of stress damage and drilling fluid on strength of hard brittle shale WANG Wei(汪伟), DENG Jin-gen(邓金根), YU Bao... University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: During well drilling process, original stress state of hard brittle shale will be changed due to stress redistribution......
stress are discussed. The sliding ratio is calculated and the comparison between the involute gear and proposed gear is made. According to the exactitude solid model, the gear pair was manufactured... J. Cent. South Univ. (2018) 25: 831-842 DOI: https://doi.org/10.1007/s11771-018-3787-7 Theoretical and experimental investigation on internal gear pair with small sliding ratio PENG Shuai(彭帅)1, MA......
with miniaturization[16] the grain boundaries become slight when the specimen size decreases. The reduction of the flow stress increases with increasing strain. With increasing grain size, the ratio... at different grain sizes: (a) L=16 ?m; (b) L=57 ?m 4 Conclusions 1) The flow stress decreases with decreasing the specimen size, which can be explain by the ratio of the free surface layer......
J. Cent. South Univ. Technol. (2010) 17: 738-743 DOI: 10.1007/s11771-010-0549-6 Stress field evolution law of mining environment reconstructing structure with change of filling height CHEN...; Abstract: For improving global stability of mining environment reconstructing structure, the stress field evolution law of the structure with the filling height change of low-grade backfill......
