Open Access

ARTICLE

Upper Bound Limit Analysis of Anisotropic Soils

Chunguang Li^{1, *}, Cuihua Li², Cong Sun³

1 State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, China.
2 School of Urban Construction, Wuchang University of Technology, Wuhan, 430223, China.
3 Wuhan Municipal Construction Group Co., Ltd., Wuhan, 430023, China.

* Corresponding Author: Chunguang Li. Email: .

Computers, Materials & Continua 2020, 65(3), 2607-2621. https://doi.org/10.32604/cmc.2020.04662

Received 07 November 2018; Accepted 01 January 2019; Issue published 16 September 2020

Abstract

In this paper, a novel discretization method in σ-τ space is developed to calculate the upper bound limit loads and failure modes of anisotropic Mohr-Coulomb materials. To achieve this objective, the Mohr-Coulomb yield criterion is linearized in σ-τ space, which allows for upper bound solution of soils whose cohesion and friction coefficient varying with direction. The finite element upper 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 upper bounds for anisotropic soils.

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Citations