Soil mechanics and plasticity analysis of strain softening. Stress-strain relations, uniqueness and variational theorems for elastic-plastic materials with singular yield surface. Unified elastoplastic finite difference and its application. MA Zong-yuan, LIAO Hong-jian, DANG Fa-ning. FLAC3D-Fast lagrangian analysis of continua in 3 Dimensions (Version 4.0) user’s manual. FLAC-Fast lagrangian analysis of continua (Version 6.0) user’s manual. Study on soft soil by the true triaxial tests. Chinese Journal of Geotechnical Engineering, 1993, 15(4): 26–32. Examination and analysis of true triaxial compression testing of strength criteria of rock. Unified elasto-plastic associated and non-associated constitutive model and its engineering applications. YU Mao-hong, YANG Song-yan, FAN S C, Ma Guo-wei. Computational plasticity: With emphasis on the application of the unified strength theory. Non-associated plasticity for soils concrete and rock. Unified strength theory and its applications. Advances in strength theories for materials under complex stress state in the 20th century.
Nonlinear unified strength criterion for concrete under three-dimensional stress states. Journal of Geotechnical and Geoenvironmental Engineering ASCE, 2008, 134(1): 117–124.ĭU Xiu-li, LU De-chun, GONG Qiu-ming, ZHAO Mi. Failure criterion for cross-anisotropic soils. A note on the drained strength of sand under generalized strain conditions. International Journal of Rock Mechanics & Mining Sciences, 2009, 46(1): 115–127. True-triaxial strength criteria for rock. International Journal for Numerical and Analytical Methods in Geomechanics, 2002, 26(8): 815–830. Identification of non-linear stress-strain-time relationship of soils using genetic algorithm. International Journal of Rock Mechanics and Mining Sciences, 2004, 41(3): 423–423.įENG Xia-ting, LI Shao-jun, LIAO Hong-jian, YANG Cheng-xiang. Numerical modeling of the effect of strain rate on the stress-strain relation for soft rock using a 3-D elastic visco-plastic model. LIAO Hong-jian, PU Wu-chuan, YIN Jian-hua, AKAISHI M, TONOSAKI A. Test and numerical analysis of the constitutive relation of a diatomaceous soft rock. LIAO Hong-jian, SU Li-jun, PU Wu-chuan, YIN Jian-hua. An elastoplastic model for soft sedimentary rock considering inherent anisotropy and confining-stress dependency. Civil Engineering Dimension, 2007, 9(1): 9–14.įU Y K, IWATA M K, DING Wen-qi, ZHANG Feng, YASHIMA A. The Uniaxial compressive strength of soft rock. Oxford: Pergamon Press, 1981: 73–79.ĪGUSTAWIJAYA D S. Rock characterization, testing and monitoring-isrm suggested methods, BROWN E T (Editor). International Society for Rock Mechanics (ISRM). The axial compression for a rock pillar indicated the peak and residual strengths increase six-fold when the soft rock interlayer approached the vertical and the effect of the intermediate principal stress is taken into account. The CD true triaxial test simulations for diatomaceous soft rock suggest the peak and residual strengths increase by 30% when the effect of the intermediate principal stress is taken into account.
#FLAC3D SIMULATION OF TRIAXIAL TEST CODE#
Finally, an example of an axial compression test for a hard rock pillar with a soft rock interlayer was analyzed using the two-dimensional finite difference code FLAC. Based on the results of the true triaxial tests simulation, the effect of the intermediate principal stress on the strength of soft rock was investigated. A hexahedral element and a strain hardening/softening constitutive model based on the unified strength theory (UST) were used to simulate both the consolidated-undrained (CU) triaxial and the consolidated-drained (CD) true triaxial tests.
#FLAC3D SIMULATION OF TRIAXIAL TEST SERIES#
A series of numerical simulations of conventional and true triaxial tests for soft rock materials using the three-dimensional finite difference code FLAC3D were presented.
0 kommentar(er)
