シェル有限要素解析で評価したウェブ補強十字継手ホットスポット応力の計算精度に関する研究 Study on the Preciseness of Hot Spot Stress of Web-Stiffened Cruciform Welded Joints Derived by Shell Finite Element Analyses

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A new simple and accurate shell FE-based structural Hot Spot Stress (HSS) determination method for web-stiffened cruciform joints has been proposed. Local stress of welded joints in full-scale BC lower stool models subject to bending and pressure loadings are examined. HSSs determined by the proposed method are compared with those derived by Lotsberg's method (Lotsberg et al., 2007) and the conventional 0.5t-1.5t extrapolation. It is shown that the local stress of full-scale BC lower stool models with various stool angle and plate thickness can be calculated accurately solely from shell FE results by following the proposed method. HSSs of welded joints in BC lower stool models subject to pressure loadings derived by the proposed method show good agreement with the target HSSs. This demonstrates the validity of the proposed method for actual ship structures under the real load. The proposed HSS determination method has advantage over Lotsberg's method in the accuracy and application range.

収録刊行物

  • 日本船舶海洋工学会論文集 = Journal of the Japan Society of Naval Architects and Ocean Engineers

    日本船舶海洋工学会論文集 = Journal of the Japan Society of Naval Architects and Ocean Engineers (14), 175-189, 2011-12-01

    公益社団法人 日本船舶海洋工学会

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各種コード

  • NII論文ID(NAID)
    10030137242
  • NII書誌ID(NCID)
    AA12057769
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    18803717
  • NDL 記事登録ID
    023529427
  • NDL 請求記号
    Z74-E724
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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