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arXiv · 2606.12238

Thermodynamically consistent phase field model for hydrogen-assisted cracking

G. F. Bouobda-Moladje·A. Ruffini·Y. Le Bouar·A. Finel
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Abstract

We propose a phase field model able to simulate hydrogen-assisted cracking in polycrystalline materials. Within a variational framework, the model simultaneously describes crack propagation and hydrogen segregation on crack surfaces and grain boundaries together with the associated reduction in interfacial energies. In the context of hydrogen-enhanced decohesion (HEDE) mechanisms, we demonstrate the ability of the model to capture the transition from transgranular cracking to hydrogen-assisted intergranular cracking.

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G. F. Bouobda-Moladje, A. Ruffini, Y. Le Bouar, A. Finel. 2026-06-10. Thermodynamically consistent phase field model for hydrogen-assisted cracking. https://arxiv.org/abs/2606.12238

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