Satoru NISHIKAWA
著者に関連した記事は13件です。
更新情報
第11回
理想化陽解法FEM を用いた実機多パス溶接継手の残留応力解析
著者:
西川 聡,Satoru NISHIKAWA,生島 一樹,Kazuki IKUSHIMA,柴原 正和,Masakazu SHIBAHARA
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butt welded pipe dissimilar welded joint idealized explicit FEM multi-pass welding residual stress three dimensions analysis
西川 聡,Satoru NISHIKAWA,生島 一樹,Kazuki IKUSHIMA,柴原 正和,Masakazu SHIBAHARA
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butt welded pipe dissimilar welded joint idealized explicit FEM multi-pass welding residual stress three dimensions analysis
In welds of steel structure of nuclear power plants, stress corrosion cracking and fatigue cracking occur, and the residual stress due to welding becomes one of the main factors causing them. Therefore, it is necessary to understand the residual stress distribution of a welded region, and residual stress analysis performed by the finite element method (FEM) has been become an effective tool. Previously, in order to shorten computation time, the analyses are carried out in a two-dimensional model and th...
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Residual stress analysis of multi-pass welded joint in nuclear power plant using idealized explicit FEM.
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Residual stress analysis of multi-pass welded joint in nuclear power plant using idealized explicit FEM.
論文
異種材溶接継手の残留応力解析
著者:
鈴木 賢治,Kenji SUZUKI,山岸 葵,Aoi YAMAGISHI,西川 聡,Satoru NISHIKAWA,菖蒲 敬久,Takahisa SHOBU
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Dissimilar Welded Joint Finite Element Method NCF600 Residual Stress SUS316L
鈴木 賢治,Kenji SUZUKI,山岸 葵,Aoi YAMAGISHI,西川 聡,Satoru NISHIKAWA,菖蒲 敬久,Takahisa SHOBU
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Dissimilar Welded Joint Finite Element Method NCF600 Residual Stress SUS316L
In this study, a residual stress distribution in a dissimilar plate butt-welded joint was simulated by a thermo-elastic finite element method. The base metal was the austenitic stainless steel SUS316L. The other base metal was nickel super-alloy NCF600, and the weld metal was the alloy 82 (YNiCr-3). The dimensions of the plate butt-welded joint were a width of 200 mm, a length of 250 mm and a thickness of 25 mm. The welding joint was fabricated by TIG welding with 22 passes. For comparison, the residu...
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Residual Stresses in Dissimilar Metal Joint by Multi-pass Welds
英字タイトル:
Residual Stresses in Dissimilar Metal Joint by Multi-pass Welds
第5回
長期間使用した9Cr系鋼構造物の電気化学計測を用いたじん性評価
著者:
西川 聡,Satoru NISHIKAWA,大北 茂,Shigeru OHKITA,山口 篤憲,Atsunori YAMAGUCHI
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Cr type steel Electrochemical technique Key Words Laves phase Peak of current density Toughness
西川 聡,Satoru NISHIKAWA,大北 茂,Shigeru OHKITA,山口 篤憲,Atsunori YAMAGUCHI
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Cr type steel Electrochemical technique Key Words Laves phase Peak of current density Toughness
The weld metal of modified 9Cr-1 Mo steels is most low toughness in its MIG weld joint. It is necessary to pay attention to the toughness of weld metal because of securing to ughness of weld joint. The weld metal of precipitated Laves phase after long-term thermal aging decreased toughness. Peak of the current density (Ip) in the electrochemical t echnique was appeared in the weld metals of precipitated a lot of large Laves phase. It seemed that appearance of lp was caused by the dissolution of the Lave...
英字タイトル:
Electrochemical technique for toughness evaluation on 9Cr type steel components by long-term used
英字タイトル:
Electrochemical technique for toughness evaluation on 9Cr type steel components by long-term used