Mounir Kadiri, PhD student at ENSTA (Institut Polytechnique de Paris), presented part of his doctoral research at the 11th edition of Fatigue Design, one of the leading international conferences in the field of material fatigue, held at the CETIM site in Senlis, France, on 19–20 November 2025.
Organised by CETIM (Technical Center for Mechanical Industries), the Fatigue Design conference brought together around 300 researchers, academics, and industry professionals for nearly 100 presentations dedicated to material fatigue and its industrial applications. The 2025 edition placed a particular emphasis on the green economy, with the United Kingdom serving as partner country.
Kadiri’s presentation focused on the effect of hydrogen on the self-heating response of a martensitic steel under cyclic loading, research conducted within the framework of the European DURALINK project.
The work investigates how hydrogen, introduced into high-strength steel through cathodic polarisation used to protect offshore wind turbine mooring chains from corrosion, affects the fatigue behaviour and energy dissipation of the material. Results show that hydrogen charging reduces dissipated energy in the secondary fatigue regime, introduces scatter in the self-heating curves, and causes earlier fracture, with direct implications for the fatigue life prediction of structural components used in marine environments.
DURALINK, funded by the European Union’s Research Fund for Coal and Steel (RFCS) and coordinated by Eurecat, aims to develop safer and more durable mooring systems for offshore floating wind turbines, contributing to the reliability of renewable energy infrastructure at sea.
