Periodic Reporting for period 1 - HyWay (Multiscale Characterisation and Simulation for Hydrogen Embrittlement Assessment: Development of an Open Knowledge Platform to Foster Capability Integration)
Reporting period: 2024-01-01 to 2025-06-30
1. Establish novel multiscale materials characterisation techniques to investigate the interactions between hydrogen and advanced metallic materials,
2. Develop adaptive multiphysics-based materials modelling methods to understand hydrogen effects on metals from the atomic up to the macroscopic level,
3. Create open data and knowledge platform for seamlessly integrating characterisation and simulation data,
4. Demonstrate modelling and characterisation suites’ capability on user cases in industrial environments.
The main achievements during this period include the completion of the characterisation and simulation plan, the implementation of the first version of the Hydrogen-Material Interaction Ontology, and the design of the data and knowledge management platform. Initial characterisation by various methods was completed for Use Cases 1 and 2, and the influence of anisotropy on hydrogen embrittlement susceptibility was determined. Significant progress has been made in developing interatomic potentials for hydrogen-metal systems, enabling accurate simulations of hydrogen interactions at the atomic level, as well as multiscale and multiphysics models to predict hydrogen behaviour in metallic materials.
In WP7, the project has developed interatomic potentials for various hydrogen-metal systems, enabling accurate simulations of hydrogen interactions at the atomic level. Molecular dynamics simulations have provided insights into the mechanisms of hydrogen diffusion and trapping. At the same time, density functional theory (DFT) calculations have revealed significant changes in the electronic structure of metals due to the presence of hydrogen. These simulation results have been validated with experimental data. WP8 has successfully developed a phase field model for hydrogen diffusion-induced phase transformations, a finite-strain formulation for hydrogen transport, and a continuum model for the effects of hydrogen on plasticity. Additionally, a hydrogen-aware fracture model has been developed to assess the impact of hydrogen on material fracture properties, and a macroscopic hydrogen-sensitive model has been created, successfully bridging the scale from micro to macro models.
These achievements highlight the progress made in understanding hydrogen-material interactions and developing robust protocols for characterisation and modelling. The project is on track to achieve its objectives and make a significant contribution to the field of hydrogen storage and transport components.