산업기술연구 (Journal of Industrial Technology)
- 제21권B호
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- Pages.213-222
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- 2001
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- 1229-9588(pISSN)
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- 1598-1371(eISSN)
국부가열을 이용한 면외거셋의 피로강도 향상
Improvement of Fatigue Strength by Spot Heating for Out-of-plane Gusset
- 발행 : 2001.12.31
초록
In the study, the fatigue strength improvement and mechanism have been estimated by the Spot-Heating treatment on welded bead toes. For this, web-gusset specimens were made without residual stresses and the others with residual stresses imposed by Spot-Heating. The 4-point bending tests were performed in order to estimate the effect of spot-heating on fatigue strength and fatigue characteristics quantitatively for non load-carrying fillet welded joints subjected to pure bending. As a result of fatigue test, fatigue strength of As-Welded specimen for non load-carrying fillet welded joints subjected to pure bending has satisfied the grade of fatigue prescribed in specifications of korea, AASHTO and JSSC. As compare with As-Welded specimen and Spot-Heating specimen have increased about 20% for the fatigue strength at
키워드