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

  • 제40권6호
  • /
  • Pages.37-48
  • /
  • 2003
  • /
  • 1225-1143(pISSN)
  • /
  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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면내 조합하중과 횡압을 받는 선박 이중판의 강도 평가

Strength Evaluation of a Doubler Plate of Ship Structure subjected to the In-plane Combined Load and Lateral Pressure Load

  • 함주혁 (한라대학교 시스템응용공학부)
  • Ham, Juh-Hyeok (School of System Applied Engineering, Halla University)
  • 발행 : 2003.12.01
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초록

A study for the structural strength evaluation of doubler plates subjected to the in-plane combined load and lateral pressure load has been performed through a systematic evaluation process. In order to properly estimate the static strength of doubler plate, elasto-plastic large deflection analysis is introduced including the contact effect between main plate and doubler. The characteristics of stiffness and strength variation are discussed based on the analysis results. Also, in order to compare the doubler structure with the original strength of main plate without doubler, a simple formula for the evaluation of the equivalent flat plate thickness is derived based on the additional series analysis of fiat plate structure. Using this derived equation, the thickness change of a equivalent flat plate is analyzed according to the variation of various design parameters of doubler plate and some design guides are suggested In order to maintain the original strength of main plate without doubler reinforcement. Finally, correlation between derived equivalent plate thickness formula and the developed buckling strength formulas for intact plates by author et al. is discovered and these relations are formulated for the future development of simple strength evaluation formula of doubler plate structure.

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참고문헌

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