| Budget Amount *help |
¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000)
Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2015: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
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| Outline of Final Research Achievements |
The Finite Element analyses carried out in this paper aimed to examine the effect of the weld bead shape on the fatigue crack initiation and propagation lives of a non-load carrying fillet joint under cyclic loading condition. At the same time, the effect of the factors, such as cyclic loading amplitude/welding residual stress/pre-loading/bead shape, on the fatigue life were examined. Fatigue life is obtained as the total of crack initiation and propagation lives. The results numerically obtained were in good agreement with the experimental ones by the Japanese Society of Steel Construction (JSSC) and the result provides that comparing the factors of fatigue, the bead shape has a strong effect on the crack initiation life.
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