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| MODELING OF INHERENT ANISOTROPY FOR GEOTECHNICAL MATERIAL |
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Abstract A model of anisotropy for geotechnical material is presented. The inherent anisotropy of this kind of material is described with an anisotropy parameter. A microstructure tensor and loading direction are incorporated in the distribution functions of anisotropy parameter，uniaxial compressive strength and uniaxial tensile strength. A failure criterion describing the fracture and yielding for geotechnical material is set up. Numerical simulation results show that the inherent anisotropy of geotechnical material can be efficiently described with the model.
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Received: 26 October 2003
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