It is common practice to calculate stress intensity factors for surface cracks in pipe-plate/tubular joints using stress intensity factor solutions developed for surface cracks in T-plate joints or flat plates with magnification factors. However, since these solutions cannot account for stress redistribution resulting from the reduction of member stiffness with crack growth, load shedding models have been introduced to modify these solutions. In the present work, a new model for the calculation of stress intensity factors for surface cracks in pipe-plate and tubular joints was developed. This model was based on a model for T-plate weld joints with built-in ends, and therefore accommodates load shedding effects directly. The resulting stress intensity factor solutions from this model were compared with available experimental data.

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Conference Proceedings of the 1998 17th International Conference on Offshore Mechanics and Arctic Engineering, OMAE
Citation
Wang, X, & Lambert, Stephan B. (Stephan B.). (1998). Calculation of stress intensity factors for surface cracks in pipe-plate and tubular joints. In Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE.