Stability and Deformation Analysis for Geotechnical Problems with Nonassociated Plasticity Based on Second-Order Cone Programming

Wang, Dongyong; Chen, Xi; Yu, Yuzhen; Ye, Jie; Lyu, Yannan

doi:10.1061/(asce)gm.1943-5622.0001339

Cited by 13 publications

(1 citation statement)

References 25 publications

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“…This scheme for handling non-associated plastic flow rule has been applied successfully to geotechnical problems including, but are not limited to, bearing capacity of foundations [32], slope stability [54], granular flow [67,73], landslides [53,65] and consolidation [68].…”

Section: Reformulation and Computation Of The Optimisation Problemmentioning

confidence: 99%

A three-dimensional particle finite element model for simulating soil flow with elastoplasticity

et al. 2022

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Soil flow is involved in many earth surface processes such as debris flows and landslides. It is a very challenging task to model this large deformational phenomenon because of the extreme change in material configurations and properties when soil flows. Most of the existing models require a two-dimensional (2D) simplification of actual systems, which are however three-dimensional (3D). To overcome this issue, we develop a novel 3D particle finite element method (PFEM) for direct simulation of complex soil flows in 3D space. Our PFEM model implemented in a fully implicit solution framework based on a generalised Hellinger–Reissner variational principle permits the use of a large time step without compromising the numerical stability. A mixed quadratic-linear element is used to avoid volumetric locking issues and ensure computational accuracy. The correctness and robustness of our 3D PFEM formulation for modelling large deformational soil flow problems are demonstrated by a series of benchmarks against analytical or independent numerical solutions. Our model can serve as an effective tool to support the assessment of catastrophic soil slope failures and subsequent runout behaviours.

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Section: Reformulation and Computation Of The Optimisation Problemmentioning

confidence: 99%

A three-dimensional particle finite element model for simulating soil flow with elastoplasticity

et al. 2022

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Geotechnical stability analysis considering strain softening using micro-polar continuum finite element method

Chen

Wang

Tang

et al. 2021

J. Cent. South Univ.

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Assessment on strength reduction schemes for geotechnical stability analysis involving the Drucker-Prager criterion

Wang

Chen

et al. 2021

J. Cent. South Univ.

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Stability and Deformation Analysis for Geotechnical Problems with Nonassociated Plasticity Based on Second-Order Cone Programming

Cited by 13 publications

References 25 publications

A three-dimensional particle finite element model for simulating soil flow with elastoplasticity

A three-dimensional particle finite element model for simulating soil flow with elastoplasticity

Geotechnical stability analysis considering strain softening using micro-polar continuum finite element method

Assessment on strength reduction schemes for geotechnical stability analysis involving the Drucker-Prager criterion

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