Research Article
Jul 1982
Fatigue Crack Propagation from Fillet Weld Toes
Authors: Kentaro Yamada and Manfred A. Hirt, M.ASCEAuthor Affiliations
Publication: Journal of the Structural Division
Volume 108, Issue 7
Abstract
The fatigue crack propagation behavior of two types of fillet welded specimens is investigated and the application of fracture mechanics for the prediction of fatigue life is discussed. Small scale fillet welded stiffener and gusset specimens were tested under constant amplitude stress cycles. The crack propagation behavior is estimated from dye-markings on the fatigue fracture surface. The dye penetrant technique permits a crack depth of as small as 0.1 to 0.2 mm to be visibly marked. Along the fillet weld toes of the stiffener specimens, single or multiple cracks, 0.47 to 0.6 mm deep, could be dye-marked, after about 30% of the fatigue life. Cracks could be marked even earlier in the gusset specimens due to a higher stress concentration. Applying the method of fracture mechanics, the fatigue behavior of these dye-marked specimens are analysed. Measured crack shapes and fillet weld toe geometries are taken into account. The computer fatigue life is in good agreement with the test results.
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Published In
Journal of the Structural Division
Volume 108 • Issue 7 • July 1982
Pages: 1526 - 1540
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Jul 1982
Published online: Feb 1, 2021
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Authors
Affiliations
Kentaro Yamada
Asst. Prof., Dept. ofCiv. Engrg., Nagoya Univ., Nagoya, Japan; Visiting Prof., Inst. of Steel Construction, Swiss Federal Inst. of Tech., Lausanne, Switzerland
Manfred A. Hirt, M.ASCE
Prof., Dept. of Civ. Engrg., Inst. of Steel Construction, Swiss Federal Inst. of Tech., Lausanne, Switzerland
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.