Fatigue strengths of fillet-welded joints containing root discontinuities

Miki, Chitoshi; Tateishi, Kensuke; Fan, Heng-da; Tanaka, Mutsuto

doi:10.1016/0142-1123(93)90007-d

Cited by 21 publications

(4 citation statements)

References 3 publications

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“…In this case, a high skill welder performed the welding works. In addition, the most important factor which affects the fatigue performance of joint as reported by many researchers [3,7,[14][15][16], such as toe radius, flank angle, defect and surface finish at the weld toe, was found not significant in this study.…”

Section: S-n Curve Based On the Nominal Stresscontrasting

confidence: 76%

“…The experimental results might contribute to the improvement of the structural integrity of large welded structures. Furthermore, the study by Miki et al [3] has achieved similar results. However, the experimental result is not universal for all applications since the skill of welders may contribute to the quality of welded joints.…”

Section: S-n Curve Based On the Nominal Stresssupporting

confidence: 72%

“…Studies by Miki et al [3] indicate that load carrying fillet-welded joints containing gap size of 2 and 3 mm present higher fatigue performance due to deeper penetration of weld metal to root section. However, the gap size is still under the limitation of code requirements.…”

Section: Introductionmentioning

confidence: 99%

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Comprehensive study of structural integrity of non-load-carrying fillet-welded joint effect with large gap size

2015

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The structural integrity of the fillet-welded joint with large gap sizes made by semi-automatic CO 2 gas shielded welding is investigated to suggest for the improvement of construction quality standards. An allowable limit on the gap size of welded joints is specified in many construction quality standards based on experimental and empirical results from the welded joints made by manual metal arc welding. Mechanical tests such as hardness, tensile, bending and fatigue were performed to confirm the welded specimen's quality. Macro observation and dye penetrants inspection were performed on the welded specimen face and weld toe area to verify if any defects are present. Obtained S-N curves from experimental results for the welded specimen with large gap present higher performance compared to the fatigue design S-N curves proposed by the International Institute of Welding (IIW) and UK-HSE.Keywords Welded joint with large gap Á Non-loadcarrying fillet-welded joint Á Fatigue performance Á CO 2 gas shielded welding Á Hot spot stress Á Mechanical properties of a welded joint

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