The Study of Fatigue Life of the Crack of Weld Bead

Li, Dong Xia; Ying, Ming; Jia, Fang; Jia, Bao Chun

doi:10.4028/www.scientific.net/kem.324-325.467

Cited by 3 publications

(2 citation statements)

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“…The TIG-dressing is fusion repaired in the position of toes used by tungsten inert gas when the structure has already been the first welding repaired [1]. The position of the cracks is not actually to appear at one side of the welding line.…”

Section: Tig-dressing Procedures and Loadingmentioning

confidence: 99%

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Enhancement of the Fatigue Property of the Crack of Cruciform Welded Joints by TIG-Dressing

Jia²,

Zhu

2010

AMR

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The effect of TIG-dressing on fatigue strength in support of the fillet weld of offshore platform was investigated experimentally in the paper. According to the causes in which most cracks are produced in actual structure, the model tests have been performed based upon cruciform weld bead characteristic. The TIG-dressing technique parameters were established by the actual structure and the fatigue specimen tests were done also. The life estimation equation after TIG-dressing is presented by least square method. The fatigue life used by TIG-dressing has increased over 100%. Therefore the TIG-technique gives a big potential for engineering application.

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Section: Tig-dressing Procedures and Loadingmentioning

confidence: 99%

“…Weld toe treatment by TIG-dressing [1] has been shown to improve the fatigue properties of weld joints [2]. In particular, under constant amplitude loading TIG-dressing increased the fatigue strength by 37% and the fatigue life by 2.5 times [3].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of the Fatigue Property of the Crack of Cruciform Welded Joints by TIG-Dressing

Jia²,

Zhu

2010

AMR

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Estimation of the fatigue life according to lap joint weld profiles for ferritic stainless steel

Kim

Lee

2011

Procedia Engineering

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A Study on the Dissimilar Metal Joining of Aluminum to Steel Using the Arc Heat Source (Ⅳ) - Fatigue Behaviors Using Ultrasonic Elastic Resonance -

김

조²,

이

2018

Journal of Welding and Joining

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In order to commercialize the Fe-Al joining technology using arc heat source, it is necessary to guarantee about static and dynamic strength. However, no studies have been conducted to evaluate the fatigue strength of Al-Fe joints using arc heat sources. Therefore, ultrasonic fatigue test to the overlap joint structure of dissimilar materials was examined at first. For the ultrasonic elastic resonance experiment, the plate type specimen of the overlap joint was designed based on the design theory of the ultrasonic fatigue specimen. As a result, it was confirmed that the ultrasonic fatigue test for the overlap joint was sufficiently applicable through the thermal imaging camera measurement. Also the result of ultrasonic fatigue test according to the heat input and the presence of gap, the fatigue life depend on increasing heat input was reduced due to inverse proportion to the growth of the root pore. On the other hand, if the gap is present, fatigue life is improved up to 25% as much as the static strength by removing a considerable amount of pores. When compared to other studies on the fatigue of aluminum lap joints, this fatigue limit is sufficiently competitive if a method to control the pores is constructed.

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The Study of Fatigue Life of the Crack of Weld Bead

Cited by 3 publications

References 0 publications

Enhancement of the Fatigue Property of the Crack of Cruciform Welded Joints by TIG-Dressing

Enhancement of the Fatigue Property of the Crack of Cruciform Welded Joints by TIG-Dressing

Estimation of the fatigue life according to lap joint weld profiles for ferritic stainless steel

A Study on the Dissimilar Metal Joining of Aluminum to Steel Using the Arc Heat Source (Ⅳ) - Fatigue Behaviors Using Ultrasonic Elastic Resonance -

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