A variational method for the simulation of hydrogen diffusion in metals
Materials Science
2024-06-21 v1 Computational Physics
Abstract
We present a new method for the approximate solution of the strongly coupled, nonlinear stress-diffusion problem that appears when modeling hydrogen transport in metals. The most salient feature of the proposed approximation is that it is fully variational, meaning that all the discrete equations are obtained from the optimality conditions of an incremental potential, even for inelastic mechanical behavior. Like other variational methods, the proposed algorithm has remarkable properties, including the symmetry of the tangent operator, making its solution extremely efficient compared to other similar methods available in the literature.
Cite
@article{arxiv.2406.12893,
title = {A variational method for the simulation of hydrogen diffusion in metals},
author = {Eva M. Andrés and Ignacio Romero},
journal= {arXiv preprint arXiv:2406.12893},
year = {2024}
}