Different models were built by combining some basic grids, such as cubes.
#Using flac3d to model triaxial test clay software#
(3) VC++ programming language is used to modify Duncan-Chang E-B model in the software of FLAC 3D. In this paper, consolidated-undrained triaxial tests of silty clay under normal temperature were simulated by FLAC3D. Correspondingly, the initial tangent elastic modulus is modified into a three-stage function, and the Duncan-Chang model of Guiyang red clay is obtained and the parameters such as shear strength, failure ratio, tangent Poisson’s ratio and tangent volume modulus are calculated. The curve is composed of three segments which represent the deformation law of the clay samples in compression-shearing process. The model of the sample is a cube with unit dimensions. (2) Based on Duncan-Chang model, the incremental elastic curve is fitted. This set of problems tests the prediction accuracy of the modified Cam-clay model in FLAC3D.
(1) According to the results of triaxial consolidated drained tests with different moisture content, the damage forms, stress-strain curve, the relationships between pore water pressure and displacement changing with the time are analyzed in detail. Detailed description of the soil profile is given in Kanoun FLAC3D model. Based on Duncan-Chang model, the constitutive model of red clay and its mechanical parameters are studied by laboratory tests and numerical simulation. The simulation of performed triaxial 3 0. A large area of China Southwest is covered by red clay, which is a kind of Karst regional special clay with high moisture content, high ductility, large void ratio, low density, poor compaction.