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Nonlinear Dilatancy Model and Its Matrix [D] of Rockfill Materials
As indicated by large-scale triaxial shear tests on rockfill materials, there were obvious dilatancy characteristics during the shear processes. A nonlinear shear dilatancy model for rockfill materials was introduced in this paper. Their constitutive relation under triaxial conditions was expressed in the equation of incremental stress strain relationship of modulus (Kp, Kq, G). Based on secondary elastic theory, the tensor form and matrix form of 3D constitutive relations were given for the ease of finite element computation. After the application of nonlinear shear dilatancy mode, the results from finite element calculation were compared and analyzed with fitting values and test data. In summary, the nonlinear finite element method posed relatively higher capability for simulation, especially to the dilatancy behavior of rockfill materials. It validated both the 3D constitutive relation and the matrix form derived by this paper.
Nonlinear Dilatancy Model and Its Matrix [D] of Rockfill Materials
As indicated by large-scale triaxial shear tests on rockfill materials, there were obvious dilatancy characteristics during the shear processes. A nonlinear shear dilatancy model for rockfill materials was introduced in this paper. Their constitutive relation under triaxial conditions was expressed in the equation of incremental stress strain relationship of modulus (Kp, Kq, G). Based on secondary elastic theory, the tensor form and matrix form of 3D constitutive relations were given for the ease of finite element computation. After the application of nonlinear shear dilatancy mode, the results from finite element calculation were compared and analyzed with fitting values and test data. In summary, the nonlinear finite element method posed relatively higher capability for simulation, especially to the dilatancy behavior of rockfill materials. It validated both the 3D constitutive relation and the matrix form derived by this paper.
Nonlinear Dilatancy Model and Its Matrix [D] of Rockfill Materials
Pan, Jiajun (author) / Cheng, Zhanlin (author) / Rao, Xibao (author) / Xu, Han (author) / Zuo, Yongzhen (author)
Geo-Shanghai 2014 ; 2014 ; Shanghai, China
Soil Behavior and Geomechanics ; 596-605
2014-05-05
Conference paper
Electronic Resource
English
Nonlinear Dilatancy Model and Its Matrix [D] of Rockfill Materials
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