In order to establish the creep life assessment method for modified 9Cr-1Mo steel welded joints on hot reheat piping of generating power plants, internal pressure creep tests conducted with full size components are analysed using the finite element method (FEM). As a result, it is shown that the creep damage distribution in weld heat affected zone (HAZ) can be predicted by stress distribution in HAZ, and that average stress in HAZ can be a representative value for creep strength of welded joints.
- Pressure Vessels and Piping Division
Type IV Creep Damage Analysis for Full Size Component Test on Welded P91 Boiler Hot Reheat Piping
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Takemasa, F, Nonaka, I, Ito, T, Saitou, K, Miyachi, Y, & Kagiya, Y. "Type IV Creep Damage Analysis for Full Size Component Test on Welded P91 Boiler Hot Reheat Piping." Proceedings of the ASME/JSME 2004 Pressure Vessels and Piping Conference. Elevated Temperature Design and Analysis, Nonlinear Analysis, and Plastic Components. San Diego, California, USA. July 25–29, 2004. pp. 69-74. ASME. https://doi.org/10.1115/PVP2004-2261
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