TB933 2001042870微细颗粒度分析方法与测试技术=Submicron particlessizing methods and measurment techniques[刊,中]/郭永彩,高潮,胡学东,谢利利(重庆大学光电工程学院.重庆(400044))//重庆大学学报.-2000,(5).-99-103分析并综述了...TB933 2001042870微细颗粒度分析方法与测试技术=Submicron particlessizing methods and measurment techniques[刊,中]/郭永彩,高潮,胡学东,谢利利(重庆大学光电工程学院.重庆(400044))//重庆大学学报.-2000,(5).-99-103分析并综述了现代颗粒测试的方法和技术,讨论了这些方法应用于亚微米级超细颗粒的测量时存在的问题和局限。表1参4(董玉敏)TB96//O552.423 2001042871利用CCD测量液体折射率=Measurement of the refractiveindex for liquid using CCD[刊,中]/张全法,郭茂田,杨海彬,何金田(郑州大学物理工程学院.河南,郑州(450052))//半导体光电.-2000,21(3).展开更多
A new double-yield-sarface （DYS） model was developed to characterize the strength and deformation behaviors of coarse granular materials （CGMs）. Two kinds of deformation mechanisms, including the shear and compres...A new double-yield-sarface （DYS） model was developed to characterize the strength and deformation behaviors of coarse granular materials （CGMs）. Two kinds of deformation mechanisms, including the shear and compressive plastic deformation, were taken into account in this model, These two deformation mechanisms were described by the shear and compressive yield functions, respectively. The Lode angle dependent formulations of proposed model were deduced by incorporating a 3D nonlinear unified failure criterion. Some comparisons were presented between the numerical predictions of proposed model and test data of true triaxial tests on the modeled rockfills. The model predictions are in good agreement with the test data and capture the strain hardening and plastic volumetric dilation of CGMs. These findings verify the reasonability of current DYS model, and indicate that this model is well suited to reproduce the stress-strain-volume change behavior of CGMs in general.展开更多
文摘TB933 2001042870微细颗粒度分析方法与测试技术=Submicron particlessizing methods and measurment techniques[刊,中]/郭永彩,高潮,胡学东,谢利利(重庆大学光电工程学院.重庆(400044))//重庆大学学报.-2000,(5).-99-103分析并综述了现代颗粒测试的方法和技术,讨论了这些方法应用于亚微米级超细颗粒的测量时存在的问题和局限。表1参4(董玉敏)TB96//O552.423 2001042871利用CCD测量液体折射率=Measurement of the refractiveindex for liquid using CCD[刊,中]/张全法,郭茂田,杨海彬,何金田(郑州大学物理工程学院.河南,郑州(450052))//半导体光电.-2000,21(3).
基金Project(50825901)supported by the National Natural Science Foundation for Distinguished Young Scholar of ChinaProject(2009492011)supported by State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Nanjing Hydraulic Research Institute,China+1 种基金Project(GH200903)supported by Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering(Hohai University),ChinaProject(Y1090151)supported by Natural Science Foundation of Zhejiang Province,China
文摘A new double-yield-sarface （DYS） model was developed to characterize the strength and deformation behaviors of coarse granular materials （CGMs）. Two kinds of deformation mechanisms, including the shear and compressive plastic deformation, were taken into account in this model, These two deformation mechanisms were described by the shear and compressive yield functions, respectively. The Lode angle dependent formulations of proposed model were deduced by incorporating a 3D nonlinear unified failure criterion. Some comparisons were presented between the numerical predictions of proposed model and test data of true triaxial tests on the modeled rockfills. The model predictions are in good agreement with the test data and capture the strain hardening and plastic volumetric dilation of CGMs. These findings verify the reasonability of current DYS model, and indicate that this model is well suited to reproduce the stress-strain-volume change behavior of CGMs in general.
