日本船舶海洋工学会論文集
Online ISSN : 1881-1760
Print ISSN : 1880-3717
ISSN-L : 1880-3717
目違いのある十字溶接継手止端部応力集中係数のFEM 解析による一考察
-止端部の相対位置と応力集中係数との関係による評価-
谷野 忠和緒方 洋典堺田 和昌森 俊哲山本 元道安藤 翼
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2017 年 26 巻 p. 145-155

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For the cruciform welded joints between corrugated bulkhead of duplex stainless steel plate and inner bottom of stainless (SUS) clad steel plate which have misalignment between the vertical steel plates under uniaxial and biaxial tensile loading conditions, numerical analysis of finite element method were performed with variable parameters of the loading condition, amount of misalignment, weld size and welding condition of penetration. The stress concentration factor on each weld toe of the cruciform welded joint was evaluated and the relations between the stress concentration factor and relative positional difference of weld toes on both side of inner bottom are investigated. As results, with misalignment, geometrical symmetry between weld leg shapes on both side of inner bottom is also desirable to avoid high stress concentration. In addition, for misalignment due to vertical alignment with mold line between vertical steel plates with difference in plate thicknesses, deep penetration welding is desirable to suppress stress concentration increased by its misalignment from comparison with fillet welding.

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© 2017 社団法人 日本船舶海洋工学会
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