Strain-driven corrosion crack growth - A pilot study of intergranular stress corrosion cracking
(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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/84ece119-4c5e-4977-b158-dedea401d6d4
- author
- Jivkov, A. P. LU and Ståhle, P. LU
- publishing date
- 2002
- 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}}, }