Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Service Life Prediction of Marine Rubber Fender

  • Woo, Chang-Su (Department of Nano Applied Mechanic, Korea Institute of Machinery & Materials) ;
  • Park, Hyun-Sung (Department of Nano Applied Mechanic, Korea Institute of Machinery & Materials) ;
  • Sung, Il-Kyung (Technical Research Center, Hwaseung EXwill) ;
  • Yun, Soon-Hwan (Technical Research Center, Hwaseung EXwill) ;
  • Lee, Jae-Moon (Technical Research Center, Hwaseung EXwill)
  • Received : 2019.03.11
  • Accepted : 2019.03.20
  • Published : 2019.03.31
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Abstract

The function and purpose of the marine rubber fender, to prevent the damage of the ship and the mooring while the ship is being attached to the pier. However, maintenance of the fender after installation is not enough, because it is generally handled as an attachment facility. Estimation the life of a marine rubber fender is important in the maintenance of a port. When manufacturers design and produce marine rubber fenders, they do so according to various conditions such as the reaction force acting on the hull and docking vessel and deformation after absorbing the kinetic energy of the ship. In this study, a method for predicting and evaluating service life from the product design and development stage was established, in order to evaluate the durability of the marine rubber fenders. The SSp-300H and HSP-300H models were used to predict the service life. The method developed in this study, is expected to predict the service life of the marine rubber fender accurately and in a comparatively shorter time, thereby contributing to the evaluation standard and quality stability of the product.

Keywords

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Figure 1. The marine fender system.

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Figure 2. Fatigue life prediction and evaluation system of marine rubber fender.

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Figure 3. Mechanical test of rubber material.

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Figure 4. Stress-strain curves of rubber material.

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Figure 5. Stress-strain curves moved to origin.

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Figure 6. 3 dimensional dumbbell specimens.

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Figure 7. Fatigue life predict curves of rubber material.

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Figure 8. Super spool fender (SSP) and Hyper spool fender (HSP).

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Figure 10. Finite element analysis of SSP-300H and HSP-300H.

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Figure 11. Maximum strain curves of SSP-300H and HSP-300H.

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Figure 9. Force and deflection curve of super spool fender (SSP).

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Figure 12. Service life predict of SSP-300H and HSP-300H.

Table 1. Non-linear Coefficient of Rubber Material.

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