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Keywords: PTS
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Proceedings Papers

Proc. ASME. PVP2023, Volume 3: Fluid-Structure Interaction, V003T04A029, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-105923
... Abstract Pressurized thermal shock (PTS) may cause a quick, catastrophic cleavage fracture in a reactor pressure vessel (RPV) of a pressurized water reactor (PWR). Low temperatures, thermal strains, and radiation embrittlement can all combine to create dangerous situations for structures...
Proceedings Papers

Proc. ASME. PVP2022, Volume 2: Computer Technology and Bolted Joints; Design and Analysis, V002T03A052, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-83771
...) algorithm, shortly written as XFEM-IGA, is applied to a thick-walled cylindrical specimen with a circumferential crack under Pressurized Thermal Shock (PTS). The results of the crack propagation analysis are compared with the experimental ones to validate the approach, which were taken from large-scale...
Proceedings Papers

Proc. ASME. PVP2021, Volume 3: Fluid Structure Interaction; High Pressure Technology, V003T05A014, July 13–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: PVP2021-61794
... Abstract In 2020, the CFD analyses have been performed on a whole reactor vessel model. The action of accumulators during the PTS transient was considered. Using these data, an attempt to the efficient use of sub-modelling is carried out in order to obtain a strong reduction...
Proceedings Papers

Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A001, August 3, 2020
Publisher: American Society of Mechanical Engineers
Paper No: PVP2020-21026
... the computational cost of the calculation. The location of such submodel corresponds to the region of the core that suffers maximum irradiation and is subjected to high tensile stresses due to the cooling plume generated during the transient PTS cooling. The crack propagation analysis of postulated axial crack...
Proceedings Papers

Proc. ASME. PVP2019, Volume 6A: Materials and Fabrication, V06AT06A022, July 14–19, 2019
Publisher: American Society of Mechanical Engineers
Paper No: PVP2019-94019
... Abstract In this paper, an integrity assessment of a reference Reactor Pressure Vessel (RPV) under Pressurized Thermal Shock (PTS) is performed. The assessment is based on a multi-step simulation scheme, which includes the thermo-hydraulic, thermo-mechanical and fracture mechanics analyses...
Proceedings Papers

Proc. ASME. PVP2019, Volume 1: Codes and Standards, V001T01A037, July 14–19, 2019
Publisher: American Society of Mechanical Engineers
Paper No: PVP2019-93964
... by probabilistic fracture mechanics code PASCAL4 demonstrated that through-wall fracture probability can be remarkably lowered by considering through-wall fracture toughness distribution. Master Curve Mini-C(T) RPV PTS PTS EVALUATION CASE STUDY CONSIDERING ACTUAL THROUGH-WALL FRACTURE TOUGHNESS...