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Open AccessFeature PaperArticle

Effects of Principal Stress Rotation on the Fluid-Induced Soil Response in a Porous Seabed

by Zhengxu Li 1,†, Dong-Sheng Jeng 1,*,†, Jian-Feng Zhu 2,† and Hongyi Zhao 3,†
1
School of Engineering and Built Environment, Griffith University Gold Coast Campus, Queensland 4222, Australia
2
Faculty of Architectural Civil Engineering and Environment, Ningbo University, Ningbo 315211, China
3
Centre for Advanced Technologies in Rail Track Infrastructure, University of Wollongong, Wollongong 2522, Australia
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
J. Mar. Sci. Eng. 2019, 7(5), 123; https://doi.org/10.3390/jmse7050123
Received: 22 March 2019 / Revised: 17 April 2019 / Accepted: 17 April 2019 / Published: 28 April 2019
(This article belongs to the Special Issue Coastal Geohazard and Offshore Geotechnics)
Principal stress rotation (PSR) is an important feature for describing the stress status of marine sediments subject to cyclic loading. In this study, a one-way coupled numerical model that combines the fluid model (for wave–current interactions) and the soil model (including the effect of PSR) was established. Then, the proposed model was incorporated into the finite element analysis procedure DIANA-SWANDYNE II with PSR effects incorporated and further validated by the experimental data available in the literature. Finally, the impact of PSR on the pore-water pressures and the resultant seabed liquefaction were investigated using the numerical model, and it was found that PSR had a significant influence on the seabed response to combined wave and current loading. View Full-Text
Keywords: Principal stress rotation; dynamic loading; wave (current)-induced soil response; seabed liquefaction Principal stress rotation; dynamic loading; wave (current)-induced soil response; seabed liquefaction
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MDPI and ACS Style

Li, Z.; Jeng, D.-S.; Zhu, J.-F.; Zhao, H. Effects of Principal Stress Rotation on the Fluid-Induced Soil Response in a Porous Seabed. J. Mar. Sci. Eng. 2019, 7, 123.

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