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Progress and opportunities in modelling environmentally assisted cracking
File(s)
Author(s)
Martínez-Pañeda, Emilio
Type
Journal Article
Abstract
Environmentally assisted cracking phenomena are widespread across the transport, defence, energy and construction sectors. However, predicting environmentally assisted fractures is a highly cross-disciplinary endeavour that requires resolving the multiple material-environment interactions taking place. In this manuscript, an overview is given of recent breakthroughs in the modelling of environmentally assisted cracking. The focus is on the opportunities created by two recent developments: phase field and multi-physics modelling. The possibilities enabled by the confluence of phase field methods and electro-chemo-mechanics modelling are discussed in the context of three environmental assisted cracking phenomena of particular engineering interest: hydrogen embrittlement, localised corrosion and corrosion fatigue. Mechanical processes such as deformation and fracture can be coupled with chemical phenomena like local reactions, ionic transport and hydrogen uptake and diffusion. Moreover, these can be combined with the prediction of an evolving interface, such as a growing pit or a crack, as dictated by a phase field variable that evolves based on thermodynamics and local kinetics. Suitable for both microstructural and continuum length scales, this new generation of simulation-based, multi-physics phase field models can open new modelling horizons and enable Virtual Testing in harmful environments.
Date Issued
2021-07-19
Date Acceptance
2021-07-06
Citation
RILEM Technical Letters, 2021, 6, pp.70-77
URI
URL
DOI
ISSN
2518-0231
Publisher
RILEM Technical Letters
Start Page
70
End Page
77
Journal / Book Title
RILEM Technical Letters
Volume
6
Copyright Statement
© The Author(s) 2021. This article is published with open access and licensed under a Creative Commons Attribution 4.0 International License.
License URL
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Royal Commission for the Exhibition of 1851
Identifier
http://arxiv.org/abs/2108.00816v1
Grant Number
EP/V009680/1
RF496/2018
Subjects
cond-mat.mtrl-sci
cond-mat.mtrl-sci
cs.CE
Publication Status
Published
Date Publish Online
2021-07-19