Experimental Study of Mechanical Properties of Fiber of Deep-Sea Mooring Cables

Abstract:

In order to learn the mechanical properties of deep-sea mooring lines, experimental studies involved in strength properties have been carried out in this thesis. In the fiber strength performance test, the small force-large deformation experimental device has been designed and optimized. As the fiber diameter is very small (about 40μm), microscope is chosen to measure the diameter. The intensity curve of fiber is divided into three typical phases. The yield strength, breaking strength and elastic modulus in initial stage can be calculated and the elastic modulus is basically a constant. With the increasing of loading rate, the breaking force reduces and gradually tends to stabilize. It has got the formula, breaking strength ∝.

• Periodical: Applied Mechanics and Materials (Volumes 130-134)
• Pages: 1712-1715
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.130-134.1712
• Online since: October 2011
• Authors: Gai Li Zhou, Linan Li, Shui Jiao Li, Shi Bin Wang
• Keywords: Deep-Sea Mooring Cables, Fiber, Loading Rate, Tensile

References

[1] Bradon J.E. and Chaplin C.R. Quantifying the residual creep life of polyester mooring ropes'，Int J of Offshore and Polar Engineering， Vol. 15(2005)，p.223～228.

[2] Ray A K, Tiwari Y N, Roy P K, et al. Creep rupture analysis and remaining life assessment of 2. 25Cr-Mo sreel tubes from a thermal power plant [J]. Materials Science and Engineering A, Vol. 454-455 (2007), pp.679-684.

DOI: 10.1016/j.msea.2006.11.019

[3] Yamamoto Y, Brady M P, Lu Z P, et al. Creep-resistant, A1203-forming austenitic stainless steels [J]. Science, Vol. 316 (2007), pp.433-436.

DOI: 10.1126/science.1137711

[4] Yang Yu, Jincheng Liu, Zuo Wang, Jiafa Ma. Analysis of the Tensile of a Mooring Line for the Ship Berthed alongside a Wharf[J], Journal of Dalian Maritime University, Vol. 27 (2001), pp.17-20.

[5] Rixiang Zhang, Zhongbo Liu, Ningchuan Zhang. An Experimental Study on the Mooring Line Force &Impact Force of a Moored Ship Under the Combined Action of Wind, Wave and Current[J], China Offshore Platform, Vol. 2 (2003), pp.28-32.

[6] Davies p, Huard G, et al. Creep and Relaxation of Polyester Mooring Lines[r], Offshore Technology Conference held in Houston, Texas U.S.A. (2000).

[7] Richard Snell, et al. Reliability of Mooring Systems: Application to Polyester Moorings[R], Offshore Technology Conference held in Houston, Texas U.S.A. (1999).