2026-05-07T19:05:05Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/56662021-11-02T12:04:40Zcom_10259_4201com_10259_5086com_10259_2604col_10259_4505
Repositorio Institucional de la Universidad de Burgos
author
Martínez Pañeda, Emilio
author
Díaz Portugal, Andrés
author
Wright, Louise
author
Turnbull, Alan
2021-03-24T12:32:59Z
2021-03-24T12:32:59Z
2020-08
0010-938X
http://hdl.handle.net/10259/5666
10.1016/j.corsci.2020.108698
We present a generalised framework for resolving the electrochemistry-diffusion interface and modelling hydrogen transport near a crack tip. The adsorption and absorption kinetics are captured by means of Neumann-type generalised boundary conditions. The diffusion model includes the role of trapping, with a constant or evolving trap density, and the influence of the hydrostatic stress. Both conventional plasticity and strain gradient plasticity are used to model the mechanical behaviour of the solid. Notable differences are found in the estimated crack tip hydrogen concentrations when comparing with the common procedure of prescribing a constant hydrogen concentration at the crack surfaces.
eng
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Hydrogen
Diffusion
Finite element analysis
Environmentally assisted cracking
Trapping
Generalised boundary conditions for hydrogen transport at crack tips
info:eu-repo/semantics/article
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URL
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