Numerical investigation of pull-out capacity and failure mechanism of suction anchors with mooring line in sand

Zhang, Min-Hao1,2; Yin, Zhen-Yu2; Fu, Yong1,3

2023-07-15

10.1016/j.oceaneng.2023.114837

OCEAN ENGINEERING   影响因子和分区

0029-8018

1873-5258

Suction anchor is a widely used anchorage foundation in taut or catenary mooring systems to fix floating structures. This paper aims to investigate the pull-out capacity and failure mechanism of suction anchors in sand using the finite element method which models the attached mooring line on the anchor padeye. The advanced critical state elastoplastic constitutive model SIMSAND is utilized which can well simulate the state-dependent peak strength and stress-dilatancy behavior of sand, and its accuracy and effectiveness are validated with centrifuge test results. A series of systematical parametric studies are then carried out to explore the effects of the mooring line, aspect ratio, padeye position and loading angle on the pull-out capacity and failure mechanism of the suction anchor. Based on the numerical results and those obtained in other researchers' work, the optimal padeye position and the normalized V-H envelopes are explicitly discussed. Finally, a calculation framework is put forward for predicting the inclined pull-out capacity of suction anchor in sand considering the mooring line effect.

Suction anchor Pull-out capacity Failure mechanism Mooring line effect Constitutive model

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[52001157] ; Characteristic Innovation Project of Colleges and Universities of Education Department of Guangdong Province[2022KTSCX114]

Engineering ; Oceanography

Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography

WOS:001054456600001

PERGAMON-ELSEVIER SCIENCE LTD

20232314195868

Aspect ratio ; Critical current density (superconductivity) ; Failure (mechanical) ; Mooring ; Mooring cables ; Sand

Soils and Soil Mechanics:483.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Mathematics:921

ENGINEERING

Web of Science

1.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen 518055, Peoples R China
2.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China
3.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou 511458, Peoples R China

Zhang, Min-Hao,Yin, Zhen-Yu,Fu, Yong. Numerical investigation of pull-out capacity and failure mechanism of suction anchors with mooring line in sand[J]. OCEAN ENGINEERING,2023,280.

Zhang, Min-Hao,Yin, Zhen-Yu,&Fu, Yong.(2023).Numerical investigation of pull-out capacity and failure mechanism of suction anchors with mooring line in sand.OCEAN ENGINEERING,280.

Zhang, Min-Hao,et al."Numerical investigation of pull-out capacity and failure mechanism of suction anchors with mooring line in sand".OCEAN ENGINEERING 280(2023).