The use of T-butt joints to calculate stress intensity factors
(SIFs) for weld toe cracks in tubular
joints has been proposed by many researchers, including Dijkstra et
al. (TNO, Delft), Pang
(Nanyang Technological University), Fu et al. (British Gas), Maddox
(TWI) and Burdekin et al.
(UMIST). The reasons for using T-butt joint solutions to approximate
tubular joint SIFs are,
first, because tubular joint solutions only exist for a few very
basic tubular joint configurations,
and, secondly, because to derive solutions for the many different
geometries and configurations of tubular joint used in practice would
require an unmanageable number of analyses.
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