丹羽 悠介
著者に関連した記事は2件です。
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第14回
炉内計装筒管台溶接部およびその補修溶接時を 想定した残留応力解析
著者:
望月 正人,Masahito MOCHIZUKI,岡野 成威,Shigetaka OKANO,柏山 忠義,Tadayoshi KASHIYAMA,丹羽 悠介,Yusuke NIWA,亀山 雅司,Masashi KAMEYAMA,中野 守人,Morihito NAKANO
発刊日:
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キーワードタグ:
Bottom Mounted Instrument nozzles J-welds Mounting angle Repair welding Residual stress analysis Welding conditions
望月 正人,Masahito MOCHIZUKI,岡野 成威,Shigetaka OKANO,柏山 忠義,Tadayoshi KASHIYAMA,丹羽 悠介,Yusuke NIWA,亀山 雅司,Masashi KAMEYAMA,中野 守人,Morihito NAKANO
発刊日:
公開日:
キーワードタグ:
Bottom Mounted Instrument nozzles J-welds Mounting angle Repair welding Residual stress analysis Welding conditions
In this study, a fast simulation technique of Iterative Substructure Method (ISM) was applied for numerical analysis of the distribution of residual stress by J-weld and repair weld of Bottom Mounted Instrument (BMI) nozzle in reactor vessel penetration. The calculated results were compared with the measured values to validate the constructed residual stress analysis model. The effect of BMI mounting angles on distribution of residual stress at J-welds was investigated. Based on the results, similarity and...
英字タイトル:
Numerical Analysis of Residual Stress by J-weld and Repair Weld of Bottom Mounted Instrument Nozzles in Reactor Vessel Penetration
英字タイトル:
Numerical Analysis of Residual Stress by J-weld and Repair Weld of Bottom Mounted Instrument Nozzles in Reactor Vessel Penetration
第17回
高浜４号機 蒸気発生器伝熱管損傷事象における プラント長期停止の影響について
著者:
日下 浩作,丹羽 悠介,（関西電力）
発刊日:
公開日:
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Long-Term Plant Outage Scale Steam Generator Storage Conditions with Hydrazine Water Tube Failure
日下 浩作,丹羽 悠介,（関西電力）
発刊日:
公開日:
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Long-Term Plant Outage Scale Steam Generator Storage Conditions with Hydrazine Water Tube Failure
The cause of the steam generator tubing failure that was identified during the 23rd plant outage at Takahama Unit 4 was presumed to be caused by wear of the tubing due to repeated contact with exfoliated dense scale, which was formed on the tubing surface. It is suspected that the scale exfoliated because the scale could not follow the heat expansion and shrinking of the tubing applied during plant startup and shutdown operations, and then partial cracking occurred, resulting in exfoliation of partial scale...
英字タイトル:
Affection of Long-Term Plant Outage on Steam Generator Tube Failure Identified at Takahama Unit 4
英字タイトル:
Affection of Long-Term Plant Outage on Steam Generator Tube Failure Identified at Takahama Unit 4