Numerical simulation of the transient hydrogen trapping process using an analytical approximation of the McNabb and Foster equation |
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Authors: | Sofiane Benannoune Yann Charles Jonathan Mougenot Monique Gaspérini |
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Affiliation: | Université Paris 13, Sorbonne Paris Cité, Laboratoire des Sciences des Procédés et des Matériaux, LSPM, CNRS, UPR 3407, 99 Avenue Jean-Baptiste Clément, F-93430 Villetaneuse, France |
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Abstract: | 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. |
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Keywords: | Hydrogen diffusion Kinetic trapping Finite elements calculations Abaqus User subroutine MRE |
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