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Strain-driven corrosion crack growth - A pilot study of intergranular stress corrosion cracking

Jivkov, A. P. LU and Ståhle, P. LU (2002) In Engineering Fracture Mechanics 69(18). p.2095-2111
Abstract
This work proposes a model for corrosion driven crack growth. The model poses a moving boundary problem, where a chemical attack removes material from the body. The rate of the chemical attack is a function of the strain along the body surface. No crack growth criterion is needed for the analysis. A finite strain formulation is used and the material model is assumed hyperelastic. The problem is stated for a large body, containing a large crack. A low frequency cyclic loading is considered. Thus, corrosion is assumed to dissolve material with a rate approximately proportional to the strain rate. The problem is solved using finite element method based program, enhanced with a procedure handling the moving boundary. Parametric studies are... (More)
This work proposes a model for corrosion driven crack growth. The model poses a moving boundary problem, where a chemical attack removes material from the body. The rate of the chemical attack is a function of the strain along the body surface. No crack growth criterion is needed for the analysis. A finite strain formulation is used and the material model is assumed hyperelastic. The problem is stated for a large body, containing a large crack. A low frequency cyclic loading is considered. Thus, corrosion is assumed to dissolve material with a rate approximately proportional to the strain rate. The problem is solved using finite element method based program, enhanced with a procedure handling the moving boundary. Parametric studies are performed for a series of different initial shapes of the near-tip region. Presented results show that the crack growth rate is largely dependent on the initial crack geometry. For a set of initial shapes and load levels steady-state conditions of growth are achieved, while for the others the cracks show tendency to branch. (C) 2002 Published by Elsevier Science Ltd. (Less)
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author
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publishing date
type
Contribution to journal
publication status
published
subject
in
Engineering Fracture Mechanics
volume
69
issue
18
pages
17 pages
publisher
Elsevier
external identifiers
  • wos:000179132400003
  • scopus:2242461341
ISSN
0013-7944
DOI
10.1016/s0013-7944(02)00017-6
language
English
LU publication?
no
additional info
Jivkov, AP Stahle, P Jivkov, Andrey/C-3743-2009; Jivkov, Andrey/H-6137-2012; Stahle, Per/J-3590-2014 Jivkov, Andrey/0000-0002-3454-7341;
id
84ece119-4c5e-4977-b158-dedea401d6d4
date added to LUP
2019-06-25 19:04:49
date last changed
2022-01-31 22:39:43
@article{84ece119-4c5e-4977-b158-dedea401d6d4,
  abstract     = {{This work proposes a model for corrosion driven crack growth. The model poses a moving boundary problem, where a chemical attack removes material from the body. The rate of the chemical attack is a function of the strain along the body surface. No crack growth criterion is needed for the analysis. A finite strain formulation is used and the material model is assumed hyperelastic. The problem is stated for a large body, containing a large crack. A low frequency cyclic loading is considered. Thus, corrosion is assumed to dissolve material with a rate approximately proportional to the strain rate. The problem is solved using finite element method based program, enhanced with a procedure handling the moving boundary. Parametric studies are performed for a series of different initial shapes of the near-tip region. Presented results show that the crack growth rate is largely dependent on the initial crack geometry. For a set of initial shapes and load levels steady-state conditions of growth are achieved, while for the others the cracks show tendency to branch. (C) 2002 Published by Elsevier Science Ltd.}},
  author       = {{Jivkov, A. P. and Ståhle, P.}},
  issn         = {{0013-7944}},
  language     = {{eng}},
  number       = {{18}},
  pages        = {{2095--2111}},
  publisher    = {{Elsevier}},
  series       = {{Engineering Fracture Mechanics}},
  title        = {{Strain-driven corrosion crack growth - A pilot study of intergranular stress corrosion cracking}},
  url          = {{http://dx.doi.org/10.1016/s0013-7944(02)00017-6}},
  doi          = {{10.1016/s0013-7944(02)00017-6}},
  volume       = {{69}},
  year         = {{2002}},
}