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Evaluating the Mechanical Properties of Fiber Yarns for Developing Synthetic Fiber Chains
Kyeongsoo Kim,Taewan Kim,Namhun Kim,Dokyoun Kim,Yongjun Kang,Seonjin Kim 한국해양공학회 2021 韓國海洋工學會誌 Vol.35 No.6
In this study, three types of synthetic fiber materials were evaluated, namely, DM20, SK78, and T147, to replace steel chains in shipbuilding and offshore fields with fiber chains as there is increasing demand for chains with lighter weights and improved usabilities. The strength and quasi-static stiffness were analyzed to select suitable yarns for the fiber chains. The durability of the yarn was evaluated by performing a 3-T (time to rupture) test as a specific tension level. The results of the experiment revealed excellent dynamic stiffness in DM20 and highest values of the windward and leeward stiffness in T147. 3-T linear design characteristic curves for a specific tension level were derived for the three types of fiber materials. The findings of this study can provide insights for improving strength and durability in fiber chain design.