The Influence of Composite Material’s Constituents on the Stiffness of the 70m Hull

Abstract:

It is widely believed that large composite materials are difficult to build a ship which is longer than 40 meters because of lack of structural stiffness. Up to now, the ships, 72-meter in length, made of glass fiber reinforced composite have been in serve abroad, while 35 meters in China. Therefore, it’s absolutely necessary to study the problem about the stiffness of the 70-metre composite materials hulls. Start from integration design and finite element analysis of composite materials and structure, the influences of material component, laminated angle and laminated sequences of composite materials’ hull on the dynamic stiffness and static stiffness of the ship are studied to explore the method of improving stiffness. The result show that, in the conditions of having the same molded surface, ship's weight and applied stress, it can improve the ship’s longitudinal stiffness to reach standard requirements by using the part of the high modulus fiber as well as the high modulus fiber laying on the outboard of the hull.

• Periodical: Materials Science Forum (Volume 813)
• Pages: 109-115
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.813.109
• Online since: March 2015
• Authors: Wen Feng Bian*, Jie Cheng, Yan Lin Liu, Bao Xian Jia
• Keywords: Composite Materials’ Constituents, Finite Element Analysis, Hull’s Longitudinal Stiffness

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