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S. Sysala, "Advanced Continuation Methods for Limit Load and Shear Strength Reduction Methods", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Twelfth International Conference on Engineering Computational Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 8, Paper 9.2, 2024, doi:10.4203/ccc.8.9.2

Keywords: stability assessment, factor of safety, computational plasticity, finite element method, Newton-like methods, continuation techniques.

Abstract

This contribution is focused on numerical determination of factors of safety within slope stability assessment and other applications. The limit load and the shear strength reduction methods are considered, combined with the Mohr-Coulomb plasticity and the finite element method. To suppress spurious numerical oscillations observed for nonassociated plastic models, Davis' modifications of the limit load and the shear strength reduction methods are considered. To suppress numerical overestimation of the factors of safety, a special continuation technique is suggested and its convergence with respect to a spatial discretization parameter is discussed. The paper also contains many useful details to this problematic which are explained on an algebraic level to be easily understandable.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 8 PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON ENGINEERING COMPUTATIONAL TECHNOLOGY Edited by: P. Iványi, J. Kruis and B.H.V. Topping Paper 9.2 Advanced Continuation Methods for Limit Load and Shear Strength Reduction Methods S. Sysala Department of Applied Mathematics and Computational Sciences, Institute of Geonics of the Czech Academy of Sciences, Ostrava, Czech Republic doi:10.4203/ccc.8.9.2 Full Bibliographic Reference for this paper S. Sysala, "Advanced Continuation Methods for Limit Load and Shear Strength Reduction Methods", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Twelfth International Conference on Engineering Computational Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 8, Paper 9.2, 2024, doi:10.4203/ccc.8.9.2 Keywords: stability assessment, factor of safety, computational plasticity, finite element method, Newton-like methods, continuation techniques. Abstract This contribution is focused on numerical determination of factors of safety within slope stability assessment and other applications. The limit load and the shear strength reduction methods are considered, combined with the Mohr-Coulomb plasticity and the finite element method. To suppress spurious numerical oscillations observed for nonassociated plastic models, Davis' modifications of the limit load and the shear strength reduction methods are considered. To suppress numerical overestimation of the factors of safety, a special continuation technique is suggested and its convergence with respect to a spatial discretization parameter is discussed. The paper also contains many useful details to this problematic which are explained on an algebraic level to be easily understandable. download the full-text of this paper (PDF, 13 pages, 469 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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