共搜索到46401条信息,每页显示10条信息,共4641页。用时:0小时0分0秒359毫秒
......
Analytical solutions of stress and displacement in strain softening rock mass around a newly formed cavityLU Yan-er (鲁燕儿)1, YANG Wu (杨武)2(1. State Key Laboratory of Geomechanics and Geotechnical... in strain softening rock mass around a newly formed cavity are derived with a three step-wise elasto-plastic model. Hoek-Brown criterion is adopted as the yielding criterion of rock mass. Damage......
J. Cent. South Univ. Technol. (2008) 15: 508-514 DOI: 10.1007/s11771-008-0096-6 Isolation and characterization of YNTC-1, a novel Alicyclobacillus sendaiensis strain DING Jian-nan(丁建南)1, 2, HE... acidothermophilic bacterial strain, YNTC-1, was isolated from an acidic hot spring in Tengchong, Yunan, China. YNTC-1 grows at pH value of 1.5-8.0 and temperature of 40-70 ℃, with optimal pH......
Is the Crystalline Lattice Structure in Nanocrystalline Materials Different from the Perfect Crystal Lattice?Ke LU National Key Laboratory for RSA,Institute of Metal Research,Academia Sinica... of the ultrafine crystallites in nanocrystalline materials was presented inthis work.It was deduced that the structure of the nm-sized crystalline grains is different from theperfect crystal lattice......
J. Cent. South Univ. (2017) 24: 1977-1985 DOI: https://doi.org/10.1007/s11771-017-3606-6 Measurement and evaluation of strain fields in T23 steel based on digital image correlation method LIN Lie..., Shanghai 200240, China; 2. School of Mechanical Engineering, Shanghai Dianji University, Shanghai 201306, China Central South University Press and Springer-Verlag GmbH Germany 2017 Abstract: Surface strain......
......
slope and strain- hardening exponent 由图2可以看出,不同应变对斜率比ps的影响几乎可以忽略.在此不考虑不同应变对应变硬化指数n的影响,该斜率比与材料的硬化特性主要相关.对图2中数据曲线用一元三次多项式进行拟合,得到  ...不同深度下等效塑性应变分布 Fig. 6 Equivalent plastic strain at distribution different 2r/D values 图7 不同摩擦因数作用下等效塑性应变分布 Fig. 7 Equivalent plastic strain vs 2r/D for variation of friction......
; Influences of strain softening and seepage on elastic and plastic solutions of circular openings...; Abstract: Considering the influence of strain softening, the solutions of stress, displacement, plastic softening region radius and plastic residual region radius were derived......
......
......