Numerical simulation of the transient hydrogen trapping process using an analytical approximation of the McNabb and Foster equation

作者：Benannoune Sofiane; Charles Yann^*; Mougenot Jonathan; Gasperini Monique

来源：International Journal of Hydrogen Energy, 2018, 43(18): 9083-9093.

DOI：10.1016/j.ijhydene.2018.03.179

• Hydrogen diffusion
• Kinetic trapping
• Finite elements calculations
• Abaqus
• User subroutine
• MRE

In order to simulate hydrogen charging and discharging cycles of mechanically loaded structures, an analytical solution for the differential equation of trapping kinetics is proposed, as a generalization of the Oriani's equilibrium relationship.
This solution has been implemented in the Abaqus finite element software, and validated by comparison with the one-dimensional kinetic MRE Hydrogen Isotope Inventory Processes Code (HIIPC). Last, the results of an application on a 3D structure are presented.

• 出版日期2018-5-3