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Study on Evaluation of Compressive Strength of GFRP Stiffened Panel with Top-Hat Stiffener

Research Project

Project/Area Number 22560793
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Naval and maritime engineering
Research InstitutionEhime University

Principal Investigator

YANAGIHARA Daisuke  愛媛大学, 大学院・理工学研究科, 寄附講座准教授 (10294539)

Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords複合材料 / FRP / 座屈 / 層間はく離 / ハット型スチフナ / 防撓パネル / GFRPパネル / ハット型防撓材 / 有限要素法解析
Research Abstract

Based on the results obtained by buckling tests for a GFRP unstiffened panel and stiffened panels with a top-hat stiffener, the fundamental buckling/fracture behavior including initiation of delamination is identified. Compressive stress in BWR layers is considered as one of the causes of the delamination, and the critical stress is derived by compressive material tests. To obtain a criterion for delamination produced in the curved part of the top-hat stiffener, four-pointed bending tests for curved band plates are carried out. Based on the through-thickness stress produced in the curved plate, the critical bending moment is derived. Through the validation of the critical values, the possibility to predict the initiation of the delamination is indicated.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (4 results)

All 2013 2011

All Presentation (4 results)

  • [Presentation] Buckling/Fracture Behavior of GFRP Stiffened Panel with Top-Hat Stiffener under Compression and Pre- diction of Initiation of Delamination2013

    • Author(s)
      柳原大輔
    • Organizer
      The 23rd International Offshore and Polar Engineering Conference
    • Place of Presentation
      Anchorage Convention Center (Anchorage, Alaska, USA)
    • Year and Date
      2013-07-02
    • Related Report
      2012 Final Research Report
  • [Presentation] Buckling/Fracture Behavior of GFRP Stiffened Panel with Top-Hat Stiffener under Compression and Prediction of Initiation of Delamination2013

    • Author(s)
      柳原大輔
    • Organizer
      The 23rd International Offshore and Polar Engineering Conference
    • Place of Presentation
      Anchorage Convention Center, Anchorage, Alaska, USA
    • Related Report
      2012 Annual Research Report
  • [Presentation] ハット型防撓材を有する GFRPパネルの圧壊挙動に関する研究2011

    • Author(s)
      柳原大輔
    • Organizer
      日本船舶海洋工学会平成 23 年春季講演会
    • Place of Presentation
      福岡県中小企業振興センター
    • Year and Date
      2011-05-19
    • Related Report
      2012 Final Research Report
  • [Presentation] ハット型防撓材を有するGFRPパネルの圧壊挙動に関する研究2011

    • Author(s)
      柳原大輔
    • Organizer
      日本船舶海洋工学会平成23年春季講演会
    • Place of Presentation
      福岡県中小企業振興センター
    • Year and Date
      2011-05-19
    • Related Report
      2011 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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