This paper proposes a simple method to estimate stress intensity factors due to welding residual stresses. In this study, finite element analyses for circumferentially cracked pipe are performed to calculate stress intensity factors. Four cracked geometries and two types of weld geometry are considered. KI-solutions for the nonlinear stress distribution on the crack face were determined in accordance with codes and standards. The results are compared with KI-solutions from finite element results. It is found that proposed simple method agrees well with FE results.
- Pressure Vessels and Piping Division
Estimation of Stress Intensity Factors due To Welding Residual Stresses for Circumferentially Cracked Pipes
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Oh, C, Kim, J, Kim, Y, Oh, Y, Lee, K, & Lee, S. "Estimation of Stress Intensity Factors due To Welding Residual Stresses for Circumferentially Cracked Pipes." Proceedings of the ASME 2012 Pressure Vessels and Piping Conference. Volume 6: Materials and Fabrication, Parts A and B. Toronto, Ontario, Canada. July 15–19, 2012. pp. 63-72. ASME. https://doi.org/10.1115/PVP2012-78500
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