TY - GEN
T1 - Environmental Fatigue Analysis of nuclear components within the framework of INCEFA-SCALE project
AU - Arrieta, Sergio
AU - Cicero, Sergio
AU - Mottershead, Kevin
AU - Cicero, Román
AU - McLennan, Alec
AU - Courtin, Stephan
AU - Que, Zaiqing
N1 - Publisher Copyright:
© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the 23 European Conference on Fracture - ECF23.
PY - 2022/1/1
Y1 - 2022/1/1
N2 - INCENFA-SCALE is a five-year project funded by the EC Horizon2020 programme, successor of the INCEFA-PLUS project. INCEFA-SCALE started in October 2020. The objective of this project is to improve the capacity to predict the lifetime of Nuclear Power Plant (NPP) components subjected to environmental assisted fatigue. The project starts off by analysing the existing data and then provides new environmentally assisted fatigue data which allow the laboratory test outcomes to be applied to components with real geometries and loads. So far, the data mining of different finished projects (INCEFA-PLUS, USNRC, EPRI, MHI and AdFaM) has been carried out, and test conditions for filling the knowledge gaps have been established. Moreover, the test matrix for 2022 has been defined. In this first phase, tests are focused on producing reference data, analysing complex waveforms (variable amplitude) and the effect of the surface finish. The next testing phases will focus on particular conditions: multi-axial tests, notches, stress/strain gradient effect and size effect. Furthermore, the microstructural analysis of common materials and a guideline for fatigue striation measurement on the fracture surface have been developed. This article provides an update on the project status and the advances made in data analysis, mechanical understanding and testing conditions.
AB - INCENFA-SCALE is a five-year project funded by the EC Horizon2020 programme, successor of the INCEFA-PLUS project. INCEFA-SCALE started in October 2020. The objective of this project is to improve the capacity to predict the lifetime of Nuclear Power Plant (NPP) components subjected to environmental assisted fatigue. The project starts off by analysing the existing data and then provides new environmentally assisted fatigue data which allow the laboratory test outcomes to be applied to components with real geometries and loads. So far, the data mining of different finished projects (INCEFA-PLUS, USNRC, EPRI, MHI and AdFaM) has been carried out, and test conditions for filling the knowledge gaps have been established. Moreover, the test matrix for 2022 has been defined. In this first phase, tests are focused on producing reference data, analysing complex waveforms (variable amplitude) and the effect of the surface finish. The next testing phases will focus on particular conditions: multi-axial tests, notches, stress/strain gradient effect and size effect. Furthermore, the microstructural analysis of common materials and a guideline for fatigue striation measurement on the fracture surface have been developed. This article provides an update on the project status and the advances made in data analysis, mechanical understanding and testing conditions.
KW - environmentally assisted fatigue
KW - long-term operation
KW - nuclear power plants
KW - pressurized water reactor
KW - stainless steel
UR - https://www.scopus.com/pages/publications/85159031351
U2 - 10.1016/j.prostr.2022.12.002
DO - 10.1016/j.prostr.2022.12.002
M3 - Conference contribution
AN - SCOPUS:85159031351
T3 - Procedia Structural Integrity
SP - 27
EP - 34
BT - 23rd European Conference on Fracture, ECF 2022
A2 - Moreira, Pedro
A2 - Reis, Luis
PB - Elsevier B.V.
T2 - 23rd European Conference on Fracture, ECF 2022
Y2 - 27 June 2022 through 1 July 2022
ER -