Phase-field modelling of stress corrosion
(2012) 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012- Abstract
The evolution of surfaces exposed to an aggressive environment and mechanical load is studied. The evolution is the initial part of a stress corrosion process that leads to pitting, crack initiation and growing cracks. In conventional fracture analyses the growth rate of the crack may be computed using a modified Paris' law. However, a known or a postulated crack is required. A serious drawback is that a large part of the lifetime of a crack or a surface flaw is spent during the initiation of the crack. The knowledge of the mechanisms leading from a pit, flaw, scratch, etc. to a crack is very limited. One reason is the complication caused by the less definite defined original geometry. The motivation for the present study is to increase... (More)
The evolution of surfaces exposed to an aggressive environment and mechanical load is studied. The evolution is the initial part of a stress corrosion process that leads to pitting, crack initiation and growing cracks. In conventional fracture analyses the growth rate of the crack may be computed using a modified Paris' law. However, a known or a postulated crack is required. A serious drawback is that a large part of the lifetime of a crack or a surface flaw is spent during the initiation of the crack. The knowledge of the mechanisms leading from a pit, flaw, scratch, etc. to a crack is very limited. One reason is the complication caused by the less definite defined original geometry. The motivation for the present study is to increase the understanding of the transition from stress induced pitting to growing cracks.
(Less)
- author
- Ståhle, Per LU and Hansen, Eskil LU
- organization
- publishing date
- 2012
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Anti-plane strain, Crack initiation, Phase field model, Pitting, Stress corrosion, Surface morphology
- host publication
- 19th European Conference on Fracture : Fracture Mechanics for Durability, Reliability and Safety, ECF 2012 - Fracture Mechanics for Durability, Reliability and Safety, ECF 2012
- publisher
- European Conference on Fracture, ECF
- conference name
- 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012
- conference location
- Kazan, Russian Federation
- conference dates
- 2012-08-26 - 2012-08-31
- external identifiers
-
- scopus:85127267714
- ISBN
- 9780878493609
- 978-5-905576-18-8
- language
- English
- LU publication?
- yes
- id
- 6cfad3f1-daf1-4be8-b447-52a21281e7ce
- date added to LUP
- 2022-05-01 10:47:44
- date last changed
- 2024-01-12 12:21:59
@inproceedings{6cfad3f1-daf1-4be8-b447-52a21281e7ce, abstract = {{<p>The evolution of surfaces exposed to an aggressive environment and mechanical load is studied. The evolution is the initial part of a stress corrosion process that leads to pitting, crack initiation and growing cracks. In conventional fracture analyses the growth rate of the crack may be computed using a modified Paris' law. However, a known or a postulated crack is required. A serious drawback is that a large part of the lifetime of a crack or a surface flaw is spent during the initiation of the crack. The knowledge of the mechanisms leading from a pit, flaw, scratch, etc. to a crack is very limited. One reason is the complication caused by the less definite defined original geometry. The motivation for the present study is to increase the understanding of the transition from stress induced pitting to growing cracks.</p>}}, author = {{Ståhle, Per and Hansen, Eskil}}, booktitle = {{19th European Conference on Fracture : Fracture Mechanics for Durability, Reliability and Safety, ECF 2012}}, isbn = {{9780878493609}}, keywords = {{Anti-plane strain; Crack initiation; Phase field model; Pitting; Stress corrosion; Surface morphology}}, language = {{eng}}, publisher = {{European Conference on Fracture, ECF}}, title = {{Phase-field modelling of stress corrosion}}, year = {{2012}}, }