文章基本信息

标题：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
本地全文：下载
作者：大沢直樹 ; 山本規雄 ; 福岡哲二等
期刊名称：日本船舶海洋工学会論文集
印刷版ISSN：1880-3717
电子版ISSN：1881-1760
出版年度：2011
卷号：14
页码：175-189
DOI：10.2534/jjasnaoe.14.175
语种：Japanese
出版社：社団法人日本船舶海洋工学会
摘要：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.