Increasing safety in NPPs by Covering gaps in Environmental Fatigue Assessment

Project: EU project

Project Details


NCEFA-PLUS delivers new experimental data and new guidelines for assessment of environmental fatigue damage to ensure safe operation of European nuclear power plants.

Austenitic stainless steels will be tested for the effects of mean strain, hold time and material roughness on fatigue endurance. Testing will be in nuclear Light Water Reactor environments. The three experimental parameters were selected in the framework of an in-kind project during which the current state of the art for this technical area was developed. The data obtained will be collected and standardised in an online fatigue database with the objective of organising a CEN workshop on this aspect.

The gaps in available fatigue data lead to uncertainty in current assessments. The gaps, will be targeted so that fatigue assessment procedures can address behaviour under conditions closer to normal plant operation than is currently possible. Increased safety can thus be assured.

INCEFA-PLUS also develops and disseminates a modified procedure for estimating environmental fatigue degradation. This will take better account of the effects of mean strain, hold time and surface finish. This will enable better management of nuclear components, making possible the long term operation (LTO) of NPPs under safer conditions.

INCEFA-PLUS is relevant to the NFRP1-2014 programme because:

• Present guidance originates from NRC. In Europe various national programmes aim to develop counter proposals allowing greater operational efficiency with at least comparable safety assurance. INCEFA-PLUS brings these programmes together through which a strong EU response to the NRC methodology will be obtained with improved safety assurance through increased lifetime assessment reliability.
• INCEFA-PLUS improves comparability of data from EU programmes because partner laboratories will do some tests on a common material under common conditions. Reduced assessment uncertainty will enable easier maintenance of safety
Effective start/end date1/07/1531/10/20

Collaborative partners

  • VTT Technical Research Centre of Finland
  • Jacobs Clean Energy Limited (lead)
  • PreussenElektra GmbH
  • Paul Scherrer Institute (PSI)
  • Nuclear Research Institute Řež plc (ÚJV Řež a.s.)
  • Belgian Nuclear Research Centre (SCK CEN)
  • Lithuanian Energy Institute (LEI)
  • Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)
  • Institute for Radiological Protection and Nuclear Safety (IRSN)
  • University of Cantabria (UC)
  • Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA)
  • Joint Research Centre (JRC), Brussels
  • Areva S.A.
  • Inesco Ingenieros S.L.
  • Rolls-Royce

UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This project contributes towards the following SDG(s):

  • SDG 7 - Affordable and Clean Energy
  • SDG 9 - Industry, Innovation, and Infrastructure
  • SDG 12 - Responsible Consumption and Production

Funding category

  • EU-H2020


  • H2020-Euratom-1.8.
  • H2020-Euratom-1.3.
  • H2020-Euratom-1.1.
  • INCEFA-PLUS Findings on Environmental Fatigue

    Arrieta, S., Austin, T., Bruchhausen, M., Chitty, W. J., Cicero, R., Cicero, S., Cuvilliez, S., de Baglion, L., Dundulis, G., Gourdin, C., Huotilainen, C., Le Roux, J-C., Mann, J., Mayinger, W., McLennan, A., Métais, T., Ernestová, M., Mottershead, K., Novotny, R., Perosanz, F. J., & 6 othersPlatts, N., Procopio, I., Prompt, N., Spätig, P., Twitte, M. & Vankeerberghen, M., 2020, INCEFA-PLUS Consortium. 170 p.

    Research output: Book/ReportBook (author)Scientific

    Open Access
    123 Downloads (Pure)
  • Incefa-plus project: Review of the test programme and main results

    Dundulis, G., Grybenas, A., Bruchhausen, M., Cicero, R., Mottershead, K., Huotilainen, C., Le Roux, J. C. & Vankeerberghen, M., 27 Jul 2020, 29th International Conference on Metallurgy and Materials: Conference Proceedings. Tanger, p. 410-415 (METAL Conference Proceedings, Vol. 29).

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Open Access
    1 Citation (Scopus)
  • Incefa-plus project: Review of the test programme

    Bruchhausen, M., McLennan, A., Cicero, R., Huotilainen, C., Mottershead, K., Roux, J. C. L. & Vankeerberghen, M., 2020, ASME 2020 Pressure Vessels & Piping Conference: Codes and Standards. American Society of Mechanical Engineers (ASME), Vol. 1. 10 p. V001T01A015. (American Society of Mechanical Engineers. Pressure Vessels and Piping Division. Publication PVP, Vol. 2020).

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    8 Citations (Scopus)