IMECH-IR  > 流固耦合系统力学重点实验室
Modeling the stress-strain properties of synthetic fiber mooring lines under cyclic loading
Huang W; Liu HX; Hu C(胡存)
Source PublicationProceedings of the International Offshore and Polar Engineering Conference
2014
Conference Name24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan
Conference DateJune 15, 2014 - June 20, 2014
Conference PlaceBusan, Korea, Republic of
AbstractThe nonlinear stress-strain relationship of synthetic fiber ropes under cyclic loading is a property of vital importance which directly influences the dynamic tension response of mooring lines. How to capture the load-elongation relationship of the synthetic fiber mooring lines under cyclic loading and obtain the quantitative description is a key problem which would be of interest to mooring system designers, platform operators and researchers. The former studies were insufficient to take into account the true loading history, creep behavior and the evolution of the dynamic stiffness. A viscoelastic and viscoplastic model is developed herein to describe the stress-strain properties of synthetic fiber mooring lines. The total strain is decomposed into a recoverable viscoelastic strain and an irrecoverable plastic strain. The time-dependent property and the evolution of the dynamic stiffness can be fully incorporated in the developed model. The model is examined by comparing with the experimental results of polyester ropes under both creep-recovery and sinusoidal loadings. Through a detailed parametric analysis, further knowledge of the hysteresis loop and the dynamic stiffness evolution is clearly obtained. The present work is beneficial to improving the understanding of the performance of synthetic fiber ropes, and also provides a better basis for the further research on the mechanical problems of synthetic fiber mooring lines under complicated loading conditions. Copyright © 2014 by the International Society of Offshore and Polar Engineers (ISOPE).
KeywordDynamic Stiffness Evolution Loading History Mooring Line Stress-strain Property Time Dependent Behavior
DepartmentLMFS流固土耦合力学(LHO)
ISBN9781880653913
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60225
Collection流固耦合系统力学重点实验室
Recommended Citation
GB/T 7714
Huang W,Liu HX,Hu C. Modeling the stress-strain properties of synthetic fiber mooring lines under cyclic loading[C]Proceedings of the International Offshore and Polar Engineering Conference,2014.
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