Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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The Development of Structural Test Facility for the Strength Assessment of CFRP Marine Leisure Boat

탄소섬유강화플라스틱 재료 레저선박의 구조강도 평가를 위한 시험설비 구축과 운용에 관한 연구

  • Jeong, Han Koo (Department of Naval Architecture and Ocean Engineering, Kunsan National University) ;
  • Zhang, Yang (Department of Naval Architecture and Ocean Engineering, Kunsan National University) ;
  • Yum, Deuk Joon (Department of Naval Architecture and Ocean Engineering, Kunsan National University)
  • 정한구 (군산대학교 조선해양공학과) ;
  • 장양 (군산대학교 조선해양공학과) ;
  • 염덕준 (군산대학교 조선해양공학과)
  • Received : 2017.03.03
  • Accepted : 2017.06.09
  • Published : 2017.08.20
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Abstract

This paper deals with the development of structural test facility for the strength assessment of marine leisure boat built from carbon fiber reinforced plastics (CFRP) materials. The structural test facility consists of test jig, load application and control system, and data acquisition system. Test jig, and load application and control system are designed to accommodate various size and short span to depth ratios of single skin, top-hat stiffened and sandwich constructions in plated structural format such as square and rectangular shapes. A lateral pressure load, typical and important applied load condition to the plates of the hull structure for marine leisure boat, is simulated by employing a number of hydraulic cylinders operated automatically and manually. To examine and operate the structural test facility, five carbon/epoxy based FRP square plates having the test section area of $1m^2$, which are part of CFRP marine leisure boat hull, are prepared and they are subjected to monotonically increasing lateral pressure loads. In the test preparation, considering the symmetry of the plates geometry, various strain gauges and linear variable displacement transformer are used in conjunction with data acquisition system utilizing LabVIEW. From the test observation, the responses of the CFRP hull structure of marine leisure boat are understood by obtaining load to deflection and strain to load curves.

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References

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