Defect Assessment of Tubular T-Joints Using the R6 Failure Analysis Diagram

[+] Author and Article Information
N. O̸. Kristiansen

Kvearner Engineering, Stavanger, Norway

C. E. Turner

Imperial College of Science, Technology and Medicine, London, UK

J. Pressure Vessel Technol 115(4), 373-380 (Nov 01, 1993) (8 pages) doi:10.1115/1.2929544 History: Received January 04, 1993; Revised July 26, 1993; Online June 17, 2008


The present work centers on studying the application of the R6-type failure assessment diagram to the nodal joints of offshore platforms. The work concentrates on finite element models of tubular shells and T-joints with a part-through crack subjected to tension and out-of-plane bending loading of the brace. The overall conclusion is that the R6 procedure provided a satisfactory assessment procedure provided that, for tubular joints considered, the measure of fracture was expressed on the ordinate in terms of Gmid/Jmax and an appropriate definition of global collapse was used to normalize the applied load.

Copyright © 1993 by The American Society of Mechanical Engineers
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