Simulation of rapid spudcan penetration with the material point method

Yiming Li

doi:10.26182/d5xz-tr76

Simulation of rapid spudcan penetration with the material point method

Yiming Li

Research output: Thesis › Doctoral Thesis

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Abstract

The material point method (MPM) has revealed great potential in effective stress analyses of offshore geotechnical problems involving large deformation by existing literature. This study implemented the MPM using the coupled hydro-mechanical formulations and developed a contact algorithm based on the penalty method to model soil-structure interactions. The multi-threaded parallelism was incorporated to enhance the computational efficiency of the MPM code. Then the impacts of dynamic response, drainage condition and cavitation effect on rapid vertical penetration of spudcan into dense sand were investigated with MPM simulations using the Norsand model. Finally, the computed spudcan responses were summarised as analytical frameworks.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Randolph, Mark, Supervisor Chow, Shiaohuey, Supervisor Bienen, Britta, Supervisor
Award date	6 Jun 2023
DOIs	https://doi.org/10.26182/d5xz-tr76
Publication status	Unpublished - 2023

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10.26182/d5xz-tr76

THESIS - DOCTOR OF PHILOSOPHY - LI Yiming - 2023
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Solutions for rapid penetration into sand for offshore energy installations
Chow, S. (Investigator 01), Bienen, B. (Investigator 02), Randolph, M. (Investigator 03) & Wang, D. (Investigator 04)
ARC Australian Research Council
1/01/19 → 31/12/21
Project: Research

Cite this

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title = "Simulation of rapid spudcan penetration with the material point method",

abstract = "The material point method (MPM) has revealed great potential in effective stress analyses of offshore geotechnical problems involving large deformation by existing literature. This study implemented the MPM using the coupled hydro-mechanical formulations and developed a contact algorithm based on the penalty method to model soil-structure interactions. The multi-threaded parallelism was incorporated to enhance the computational efficiency of the MPM code. Then the impacts of dynamic response, drainage condition and cavitation effect on rapid vertical penetration of spudcan into dense sand were investigated with MPM simulations using the Norsand model. Finally, the computed spudcan responses were summarised as analytical frameworks.",

keywords = "Material point method, Large deformation simulation, Coupled hydro-mechanical formulation, Rapid spudcan penetration, Dense sand",

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language = "English",

school = "The University of Western Australia",

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N2 - The material point method (MPM) has revealed great potential in effective stress analyses of offshore geotechnical problems involving large deformation by existing literature. This study implemented the MPM using the coupled hydro-mechanical formulations and developed a contact algorithm based on the penalty method to model soil-structure interactions. The multi-threaded parallelism was incorporated to enhance the computational efficiency of the MPM code. Then the impacts of dynamic response, drainage condition and cavitation effect on rapid vertical penetration of spudcan into dense sand were investigated with MPM simulations using the Norsand model. Finally, the computed spudcan responses were summarised as analytical frameworks.

AB - The material point method (MPM) has revealed great potential in effective stress analyses of offshore geotechnical problems involving large deformation by existing literature. This study implemented the MPM using the coupled hydro-mechanical formulations and developed a contact algorithm based on the penalty method to model soil-structure interactions. The multi-threaded parallelism was incorporated to enhance the computational efficiency of the MPM code. Then the impacts of dynamic response, drainage condition and cavitation effect on rapid vertical penetration of spudcan into dense sand were investigated with MPM simulations using the Norsand model. Finally, the computed spudcan responses were summarised as analytical frameworks.

KW - Material point method

KW - Large deformation simulation

KW - Coupled hydro-mechanical formulation

KW - Rapid spudcan penetration

KW - Dense sand

U2 - 10.26182/d5xz-tr76

DO - 10.26182/d5xz-tr76

M3 - Doctoral Thesis

ER -

Simulation of rapid spudcan penetration with the material point method

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Solutions for rapid penetration into sand for offshore energy installations

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