Fatigue Assessment of Welded Joints by Local Approaches

Cetin Morris Sonsino, Dr-Ing, is Professor of Structural Durability at both Darmstadt University of Technology and Saarland University, and Deputy Head of Fraunhofer Institute for Structural Durability and System Reliability at Darmstadt. Professor Dr-Ing. Wolfgang Fricke is Head of the Institute for Ship Structural Design and Analysis at Hamburg University of Technology, Germany.

• Nominal stress approach for welded jointsStructural stress or strain approach for seam-welded jointsNotch stress approach for seam-welded jointsNotch strain approach for seam-welded jointsCrack propagation approach for seam-welded jointsNotch stress intensity approach for seam-welded jointsLocal approaches applied to a seam-welded tubular jointStructural stress or strain approach for spot-welded and similar lap jointsStress intensity approach for spot-welded and similar lap jointsNotch stress, notch strain and crack propagation approach for spot-welded and similar lap jointsSignificance, limitations and potential of local approaches.

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