Evaluation of Fatigue Crack Initiation Point of Load Carrying Cruciform Welded Joints
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Bibliografische Angaben
| Autor(en): |
Koji Kinoshita
Shinpei Arakawa |
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| Medium: | Tagungsbeitrag | ||||
| Sprache(n): | Englisch | ||||
| Tagung: | IABSE Symposium: Sustainable Infrastructure - Environment Friendly, Safe and Resource Efficient, Bangkok, Thailand, 9-11 September 2009 | ||||
| Veröffentlicht in: | IABSE Symposium Bangkok 2009 | ||||
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| Seite(n): | 61-68 | ||||
| Anzahl der Seiten (im PDF): | 8 | ||||
| Jahr: | 2009 | ||||
| DOI: | 10.2749/222137809796088297 | ||||
| Abstrakt: |
Incomplete penetration occurred in load carrying cruciform welded joints by poor welding in spite of full penetration in design. There is a high possibility that the tip of incomplete penetration may be an initiation point of a fatigue crack due to high stress concentration. In this study, in order to grasp influences of incomplete penetration on the initiation point of the fatigue crack in load carrying cruciform welded joints, parametric FEM analyses using effective notch stress approach were carried out. As a result, the influence of incomplete penetration increases with an increase of the plate thickness, and the reduction of stress at the weld root by increasing the weld size with the increase of the plate thickness on was not expected due to the unequal leg length welding. |
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