Journal article

Practical Large-Deformation Finite-Element Method for 3D Geotechnical Problems Involving Free Surface Deformations

W Zhang, MJ Cassidy, Y Tian

International Journal of Geomechanics | ASCE - American Society of Civil Engineers | Published : 2020


The remeshing and interpolation technique with small-strain (RITSS) finite-element method has been widely adopted to address a broad range of two-dimensional (2D) large deformation geotechnical problems. However, its three-dimensional (3D) applications remain extremely limited due to the requirement of user-defined coding and the challenges in accurate tracking of free surfaces. This paper introduces a recently developed 3D RITSS method to tackle geotechnical problems that involve free surface deformations with only minimal programming effort required. Both the automated mesh regeneration and the Lagrangian finite-element increments are realized using available commercial packages. The entir..

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Awarded by Australian Research Council

Funding Acknowledgements

This work forms part of the activities of the Centre for Offshore Foundation Systems (COFS), currently supported as a node of the Australian Research Council Centre of Excellence for Geotechnical Science and Engineering and as a Centre of Excellence by the Lloyd's Register Foundation (LRF). LRF, a UK registered charity and sole shareholder of Lloyd's Register Group Ltd, invests in science, engineering, and technology for public benefit, worldwide. The second author is a recipient of an Australian Research Council (ARC) Laureate Fellowship (No. FL130100059). This support is gratefully acknowledged.