Root Failure Resulting from Fillet Toe Dressing
スポンサーリンク
概要
- 論文の詳細を見る
A smoothing of a fillet toe results in an improvement of its fatigue strength, but at the same time it seems to develop its liability to root failure occurrence. The purpose of this study is to investigate the relation between root failure and stress concentration in a toe-smoothed non-load-carrying type cruciform fillet welded joint and the effects of lack of joint penetration on fatigue strength of the fillet joint. After welding, toes were TIG-dressed. In fatigue tests, the maximum stress of fatigue cycle was set at yield stress of the the material (S=σmax-σmin,σmax=σY). Main results obtained are summarized as follows : (1) The root failure seems to be apt to occur if the elastic stress conoentration factor at the TIG-dressed toe is less than about 1.6 in the present tests. (2) The root failure occurs in general at a lower stress range than at the stress range where a toe failure follows a root crack. (3) The most important condition for preventing a root failure is to allow no lack of joint penetration at rib side i.e. slit perpendicular to the loading direction.
- 社団法人溶接学会の論文
- 1992-04-01
著者
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Ohya Shinichi
Department Of Mechanical Engineering Faculty Of Engineering Musashi Institute Of Technology
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OHTA Shozaburo
Department of Mechanical Engineering, Faculty of Engineering, Musashi Institute of Technology
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ASAI Kimioku
Department of Mechanical Engineering, Faculty of Engineering, Musashi Institute of Technology
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Asai Kimioku
Department Of Mechanical Engineering Faculty Of Engineering Musashi Institute Of Technology
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Ohta Shozaburo
Department Of Mechanical Engineering Faculty Of Engineering Musashi Institute Of Technology
関連論文
- Root Failure Resulting from Toe Treatment of Non-Load-Carrying Cruciform Fillet Welded Joints
- Root Failure Resulting from Fillet Toe Dressing
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