Starting from a given model of the component, accounting for the geometry and stress-strain distribution map at the end of the stamping process, the evaluation of hydrogen diffusion and eventual accumulation over time can be estimated.

In particular, a coupled diffusion-structural FEM can be used to estimate the hydrogen concentration distribution into structural components to determine the risk for HE.

This model considers the principal factors influencing the hydrogen migration in stressed components and it is implemented in the commercial FE software Ansys Mechanical for its use in industrial applications.