Creep tests of high modulus polyethylene (HMPE) samples are performed to obtain the corresponding creep and creep-rupture curves. The results show that the secondary creep stage is especially pronounced, and its creep rate is nearly constant. Based on this fact, the creep rate at the secondary stage has been utilized as the representative value of each case. Therefore, the similarity criterion of creep rate at secondary stage is proposed to analyze the corresponding relationship between engineering creep rate and that in laboratory tests. Besides, an empirical expression of HMPE yarns is proposed to account for the effects of both loading level and test temperature on the creep rate at the secondary stage. Moreover, an equation for calculating the creep lifetime of HMPE samples is derived and verified by test data. This study will help to improve the understanding of creep behaviors of HMPE ropes and provide a significant reference for the application of HMPE ropes in mooring engineering.
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April 2018
Research-Article
An Investigation on Creep and Creep-Rupture Behaviors of HMPE Ropes
Yushun Lian,
Yushun Lian
Key Laboratory of Coastal Disaster and Defence,
Ministry of Education;
College of Harbor Coastal and
Offshore Engineering,
Hohai University,
Nanjing 210098, China
e-mails: yushunlian@tju.edu.cn; yushunlian@hhu.edu.cn
Ministry of Education;
College of Harbor Coastal and
Offshore Engineering,
Hohai University,
Nanjing 210098, China
e-mails: yushunlian@tju.edu.cn; yushunlian@hhu.edu.cn
Search for other works by this author on:
Jinhai Zheng,
Jinhai Zheng
Key Laboratory of Coastal Disaster and Defence,
Ministry of Education;
College of Harbor Coastal and
Offshore Engineering,
Hohai University,
Nanjing 210098, China
e-mail: jhzheng@hhu.edu.cn
Ministry of Education;
College of Harbor Coastal and
Offshore Engineering,
Hohai University,
Nanjing 210098, China
e-mail: jhzheng@hhu.edu.cn
Search for other works by this author on:
Haixiao Liu
Haixiao Liu
State Key Laboratory of Hydraulic Engineering
Simulation and Safety,
Tianjin University,
Tianjin 300072, China;
Collaborative Innovation Center for Advanced
Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: liuhx@tju.edu.cn
Simulation and Safety,
Tianjin University,
Tianjin 300072, China;
Collaborative Innovation Center for Advanced
Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: liuhx@tju.edu.cn
Search for other works by this author on:
Yushun Lian
Key Laboratory of Coastal Disaster and Defence,
Ministry of Education;
College of Harbor Coastal and
Offshore Engineering,
Hohai University,
Nanjing 210098, China
e-mails: yushunlian@tju.edu.cn; yushunlian@hhu.edu.cn
Ministry of Education;
College of Harbor Coastal and
Offshore Engineering,
Hohai University,
Nanjing 210098, China
e-mails: yushunlian@tju.edu.cn; yushunlian@hhu.edu.cn
Jinhai Zheng
Key Laboratory of Coastal Disaster and Defence,
Ministry of Education;
College of Harbor Coastal and
Offshore Engineering,
Hohai University,
Nanjing 210098, China
e-mail: jhzheng@hhu.edu.cn
Ministry of Education;
College of Harbor Coastal and
Offshore Engineering,
Hohai University,
Nanjing 210098, China
e-mail: jhzheng@hhu.edu.cn
Haixiao Liu
State Key Laboratory of Hydraulic Engineering
Simulation and Safety,
Tianjin University,
Tianjin 300072, China;
Collaborative Innovation Center for Advanced
Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: liuhx@tju.edu.cn
Simulation and Safety,
Tianjin University,
Tianjin 300072, China;
Collaborative Innovation Center for Advanced
Ship and Deep-Sea Exploration,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: liuhx@tju.edu.cn
1Corresponding author.
Contributed by the Ocean, Offshore, and Arctic Engineering Division of ASME for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received April 24, 2017; final manuscript received September 30, 2017; published online November 16, 2017. Assoc. Editor: Theodoro Antoun Netto.
J. Offshore Mech. Arct. Eng. Apr 2018, 140(2): 021401 (8 pages)
Published Online: November 16, 2017
Article history
Received:
April 24, 2017
Revised:
September 30, 2017
Citation
Lian, Y., Zheng, J., and Liu, H. (November 16, 2017). "An Investigation on Creep and Creep-Rupture Behaviors of HMPE Ropes." ASME. J. Offshore Mech. Arct. Eng. April 2018; 140(2): 021401. https://doi.org/10.1115/1.4038345
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