Open Access

ARTICLE

Lower Bound Limit Analysis of Anisotropic Soils

by

1 State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China.
2 Hubei Water Resources Technical College, Wuhan 430202, China.
3 Wuhan municipal construction group Co., Ltd., 430023, China.

*Corresponding author: Chuanguang Li. Email: .

Computers, Materials & Continua 2018, 54(1), 21-41. https://doi.org/10.3970/cmc.2018.054.021

Abstract

Previous approaches can only tackle anisotropic problems with cohesion varying with direction. A novel linearization of the Mohr-Coulomb yield criterion associated with plane strain problem has been achieved by simulating the Mohr’s circle with orientation lines in σ-τ space, which allows for lower bound solution of soils with cohesion and friction coefficient varying with direction. The finite element lower limit analysis formulation using the modified anisotropic yield criterion is then developed. Several examples are given to illustrate the capability and effectiveness of the proposed numerical procedure for computing rigorous lower bounds for anisotropic soils.

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