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JWJ > Volume 30(6); 2012 > Article
Journal of KWJS 2012 December;30(6) :86-91.
Published online December 23, 2012.
doi:https://doi.org/10.5781/KWJS.2012.30.6.86
Fatigue Assessment of Load-carrying Asymmetric Double Bevel Cruciform Welded Joints using Structural Stress Approach
Seong-Min Kim*, Young-Nam Kim**, Seung-Hyun Lee***, Myung-Hyun Kim*
*Dept. of Naval Architecture and Ocean Engineering, Pusan National University, Busan 609-735, Korea
**STX Offshore & Shipbuilding Co., Ltd. Changwon 645-703, Korea
***Sungdong Shipbulding & Marine Engineering Co., Ltd., Tongyeong 650-827, Korea
Correspondence: Myung-Hyun Kim  Email: kimm@pusan.ac.kr
  Published online December 23, 2012
ABSTRACT
Fatigue tests and analyses were carried out to investigate fatigue strength and crack initiation point of load-carrying asymmetric double bevel cruciform welded joints. Mesh-insensitive structural stress approach was adopted to estimate high precise fatigue life and crack initiation point. Two different case material and weld shape were considered in this study. Results of fatigue tests and analyses were compared and discussed in consideration of applicability of structural stress approach as the reliable fatigue assessment method of cruciform welded joints.
Keywords: Cruciform welded joint | Structural stress | Fatigue strength | Root crack
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