Ìâ Ä¿£ºMechanics for a net-zero future: multi-physics phase field modelling of hydrogen embrittlement, Li-Ion battery degradation and corrosion

±¨¸æÈË£ºEmilio Martinez-Paneda University of Oxford

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Prof.Emilio Martinez-Paneda is an Associate Professor at the University of Oxford. Prior to joining Oxford, he was a Reader (Associate Professor) at Imperial College London, where he led an interdisciplinary research group from 2019 to 2023 (2019: Lecturer, 2021: Senior Lecturer, 2023: Reader). Before that, he was an 1851 Research Fellow at the University of Cambridge. Prof Emilio Martinez-Paneda¡¯s research spans a wide range of challenges lying at the interface between mechanics and other disciplines such as biology, geology, chemistry and materials science, being particularly known for his pioneering contributions to the area of hydrogen embrittlement. Prof Emilio Martinez-Paneda has been the PI on over 5M GBP of funding in the past five years (ERC Starting Grant, UKRI) and his work has been recognized through multiple awards, including the 2021 UK Young Engineer of the Year (Royal Academy of Engineering), the 2022 Imperial College President¡¯s Medal for Excellence in Research, and the 2021 Gustavo Colonnetti Medal (RILEM).

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Material degradation challenges at the interface between mechanics, chemistry and materials science are hindering the energy transition. Examples include the degradation of Li-Ion batteries, the embrittlement of metals exposed to hydrogen, and the early cracking of offshore wind turbines due to corrosion. New experimental insight, increasing computer power, multi-physics modelling paradigms and the development of techniques capable of handling evolving interfaces (e.g., phase field) have opened new horizons in the simulation and prediction of these technologically relevant phenomena.

In this talk, I will overview some of our recent work in developing theoretical and computational models capable of predicting degradation phenomena in the areas of hydrogen-assisted cracking, Li-Ion batteries (conventional and all-solid-state) and metallic corrosion. Emphasis will be placed on the development of new electro-chemo-mechanical schemes that can explicitly simulate the underlying physical processes. Also, I will showcase how phase field methods enable predicting complex interfacial phenomena: from fracture mechanics to corrosion. The predictive capabilities of these formulations will be showcased by benchmarking against experimental data. Large-scale case studies of engineering interest will also be addressed to demonstrate the potential of phase field multi-physics modelling in enabling Virtual Testing in the energy sector.

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