Advanced

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 (Swedish)
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)
Please use this url to cite or link to this publication:
author
and
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
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
2020-12-23 04:08:00
@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},
}