Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Fatigue Crack Behavior of Triple Piece Spot by Crack Tip Opening Angle of Welded Specimen

3중 점용접재의 귤열단 열림각(CTOA)을 이용한 피로균열거동

  • Published : 2001.05.01
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Abstract

In this study, internal fatigue crack initiation and propagation behavior were investigated by triple piece spot welded specimen. To estimate fatigue life of the specimen varied with shape and thickness, Crack tip opening angle(CTOA) correlated with stress intensity factor was used as the stiffness parameter. The relation between fatigue life and CTOA can be arranged by the quantitative equation for each specimen by experiment. In addition, the variation of stress distribution was solved and the effect on fatigue crack behavior was examined by finite element method(FEM).

Keywords

References

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