Abstract
A biaxial shearing test on granular materials is numerically simulated by distinct element method (DEM). The evolution of the microstructures of granular materials during isotropic compression and shearing is investigated, on which a yield function is derived. The new yield function has a similar form as the one used in the modified Cam-clay model and explains the yield characteristics of granular materials under the isotropic compression and shear process through the change of the contact distribution N(θ) defining the contacts at particle contact angle θ.
Similar content being viewed by others
References
Oda M. Initial fabrics and their relations to mechanical properties of granular material. Soils Found, 1972, 12: 17–36
Matsuoka H. A microscopic study on shear mechanism of granular materials. Soils Found, 1974, 14: 29–43
Wang Y Y, Zhang Q D, Chen X Q, et al. Stress-strain self-organization Critical properties of debris flow (in Chinese). Chinese Sci Bull (Chinese Ver), 2003, 48: 976–980
Zhao C G, Zhang X D. Derivation of the work expression and discussion on the effective principle and the phase separation theorem in unsaturated soil. Sci China Ser E-Tech Sci, 2008, 51: 1530–1541
Zheng M S, Jin Z H. Spatially-cyclic function method of thermal stress analysis on grain intensified material (in Chinese). Chinese Sci Bull (Chinese Ver), 1994, 39: 1241–1245
Cundall P A, Strack O D L. A discrete numerical model for granular assemblies. Geotechnique, 1979, 29: 47–65
Liu S H, Matsuoka H. Microscopic interpretation on a stress-dilatancy relationship of granular materials. Soils Found, 2003, 43: 73–84
Liu S H. Simulating direct shear test by DEM. Canad Geotech J, 2006, 43: 155–168
Liu S H, Sun D A. Simulating the collapse of unsaturated soil by DEM. Int J Numer Anal Meth Geomech, 2002, 26: 633–646
Liu S H, Sun D A, Wang Y S. Numerical study of soil collapse behaviors by discrete element modeling. Comput Geotech, 2003, 30: 399–408
Chen H, Liu S H. Failure characteristics and stabilization methods. Canad Geotech J, 2007, 44: 377–391
Liu S H, Bauer E. A microscopic study of rainfall-induced granular slope failure. In: Proceedings of the 3rd Asian Conference on Unsaturated Soils, Nanjing, China, 2007. 379–383
Zhou J, Chi Y W, Chi Y, et al. Simulation of biaxial test on sand by particle flow code (in Chinese). Chinese J Geotech Eng, 2000, 22: 701–704
Liu Y, Wu S C, Zhou J. Numerical simulation of sand deformation under monotonic loading and mesomechanical analysis (in Chinese). Rock Soil Mech, 2008, 29: 3199–3207
Roak R J. Formulas for stress and strain. 4th ed. New York: McGraw-Hill, 1965. 319–321
Liu S H, Lu T H. Microscopic shear mechanism of granular materials in simple shear by DEM (in Chinese). Chinese J Geotech Eng, 2000, 22: 608–611
Liu S H, Xu Y F. Numerical simulation for a direct box shear test on granular marerial and microscopic consideration (in Chinese). Chinese J Rock Mech Eng, 2001, 20: 288–292
Satake M. Fabric tensor in granular materials. In: IUTAM Conference on Deformation and Flow of Granular Materials, 1982, 63–68
Xie D Y, Qi J L. Soil structure characteristics and new approach in research on its quantitative parameter (in Chinese). Chinese J Geotech Eng, 1999, 21: 651–656
Matsuoka H, Takeda K. A stress-strain relationship for granular materials derived from microscopic shear mechanism. Soils Found, 1980, 20: 45–58
Matsuoka H, Yamamoto S. A microscopic study on shear mechanism of granular materials by DEM (in Japanese). J Geotech Eng, 1994, 487/III-26: 167–175
Oda M, Konishi J, Nemat-Nasser S. Experimental micromechanical evaluation of granular materials: Effects of particle rolling. Mech Mater, 1982, 1: 269–283
Roscoe K H, Burland J B. On the generalized stress-strain behavior of ‘wet’ clay. In: Engineering Plasticity. Cambridge: Cambridge University Press, 1968. 535–609
Roscoe K H, Schofield A N, Thurairajah A. Yielding of clay in states wetter than critical. Geotechnique, 1963, 13: 221–240
Huang W X, Pu J L, Chen Y J. Hardening rule and yield function for soil. In: Proceedings of the 10th International Conference on Soil Mechanics and Foundations Engineering, 1981. 631–634
Matsuoka H, Akashi Y, Itoh K, et al. Deformation of yield surface based on fabric of granular material and its experimental check. In: Proceedings of the 30th Japan National Conference on Soil Mechanics and Foundations Engineering, 1995. 579–582
Author information
Authors and Affiliations
Corresponding author
Additional information
Supported by the National Natural Science Foundation of China (Grant Nos. 10672050, 10872016)
About this article
Cite this article
Liu, S., Yao, Y., Sun, Q. et al. Microscopic study on stress-strain relation of granular materials. Chin. Sci. Bull. 54, 4349–4357 (2009). https://doi.org/10.1007/s11434-009-0599-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11434-009-0599-z