The (K, T-stress) methodology developed by Gao and Dodds  is being utilized to introduce crack front plasticity with constraint effects when plastic deformation occurs in structures, for example, when the Reactor Pressure Vessels (RPVs) are subjected to thermal-hydraulic loadings. One crucial step in this procedure is to quantify combinations of flaw geometries and loading conditions (transient sequences) that illustrate the limits of applicability of the two-parameter (K, T-stress) advanced fracture methodology relevant to integrity analyses of RPVs subjected to normal and emergency operating conditions. Numerical analyses were conducted to determine the limits of applicability of (K, T-stress) advanced fracture technology for RPV under thermal-hydraulic loadings. The numerical results indicate that the (K, T-stress) methodology captures the constraint condition of the RPV with typical embedded flaws under a postulated dominant thermal-hydraulic transient.
Applicability of (
K, T-Stress) Methodology to Analyze RPV Under Thermal-Hydraulic Transients
- Views Icon Views
- Share Icon Share
- Search Site
Yin, S, Williams, PT, Dickson, TL, & Bass, BR. "Applicability of (K, T-Stress) Methodology to Analyze RPV Under Thermal-Hydraulic Transients." Proceedings of the ASME 2007 Pressure Vessels and Piping Conference. Volume 6: Materials and Fabrication. San Antonio, Texas, USA. July 22–26, 2007. pp. 167-176. ASME. https://doi.org/10.1115/PVP2007-26845
Download citation file: