Abstract: 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 ability of predicting the lifetime of Nuclear Power Plants (NPPs) components subjected to environmental assisted fatigue. The project progresses in the analysis of existing data and producing new environmentally assisted fatigue data which allow to apply the laboratory test outcomes to components with real geometry 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. 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 material and a guideline for fatigue striations measurement on the fracture surface have been developed. This article provides an update to the project status and the advances made in data analysis, mechanical understanding and testing conditions.

Autoría

Descargar referencia