Author(s)

W.D. Dover & C.C. Monahan

Abstract

Fatigue crack growth in welded j oints W.D. Dover/ C.C. Monahan" "NDE Centre, University College London, Torrington Place, ^Memorial University, Newfoundland, Canada Abstract Recent developments in crack measurement technique ACPD/ACFM and parametric equations for weld toe non-linear stress distributions has allowed the validation of early fatigue crack growth models for tubular welded connections. A series of fatigue tests on X and multi-planar nodes have been conducted and these have provided early crack growth data. This information has been utilised to validate crack growth models for tubular welded connections. 1 Introduction Welded joints, when subjected to even modest levels of cyclic loading, can be susceptible to fatigue damage. For this reason inspection and fatigue analysis of welded connections is very important. The nature of welded connections is such that crack initiation may not be a significant fraction of the total life leading to the studies, over

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