Mechanical behavior of a glass-fiber reinforced composite to steel joint for ships

Xiaowen Li , Ping Li , Zhuang Lin , Dongmei Yang

Journal of Marine Science and Application ›› 2015, Vol. 14 ›› Issue (1) : 39 -45.

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Journal of Marine Science and Application ›› 2015, Vol. 14 ›› Issue (1) : 39 -45. DOI: 10.1007/s11804-015-1296-8
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Mechanical behavior of a glass-fiber reinforced composite to steel joint for ships

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Abstract

The use of a glass-fiber reinforced composite in marine structures is becoming more common, particularly due to the potential weight savings. The mechanical response of the joint between a glass-fiber reinforced polymer (GRP) superstructure and a steel hull formed is examined and subsequently modified to improve performance through a combined program of modeling and testing. A finite-element model is developed to predict the response of the joint. The model takes into account the contact at the interface between different materials, progressive damage, large deformation theory, and a non-linear stress-strain relationship. To predict the progressive failure, the analysis combines Hashin failure criteria and maximum stress failure criteria. The results show stress response has a great influence on the strength and bearing of the joint. The Balsawood-steel interface is proved to be critical to the mechanical behavior of the joint. Good agreement between experimental results and numerical predictions is observed.

Keywords

glass-fiber reinforced composite / marine structure / mechanical behavior / steel joint / finite-element model / progressive failure / Hashin failure criteria

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Xiaowen Li, Ping Li, Zhuang Lin, Dongmei Yang. Mechanical behavior of a glass-fiber reinforced composite to steel joint for ships. Journal of Marine Science and Application, 2015, 14(1): 39-45 DOI:10.1007/s11804-015-1296-8

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