Malmö University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Selfsimilar solutions for stress driven material dissolution
Malmö högskola, School of Technology (TS).
2004 (English)Conference paper, Published paper (Other academic)
Abstract [en]

During corrosive dissolution of metal ions from a body surface, an oxide compound is produced. This compound forms a protective film that reduces the dissolution rate. When a fraction of a millimetre depth is dissolved the dissolution rate become insignificant. However, repeated loading will damage the film with continued dissolution as a result. In connection with this a threshold strain is assumed to exist. This paper proposes a model where electro- chemical processes and the mechanical load work together in forming a corrosion pit. The ratio between the threshold strain and the remotely applied strain is shown to control the shape of the pit. For small applied strains cracks are formed. A crack evolving from a surface irregularity is studied. The growth rate of the crack is determined by the dissolution rate at the crack tip. No crack growth criterion is needed. The growing crack is itself creating conditions for strain concentration, which leads to a high crack growth rate. The model simulates how dissolution forms a pit that grows to become a crack in a single continuous process. For small loads the crack growth rate is independent of applied load.

Place, publisher, year, edition, pages
2004.
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:mau:diva-12343Local ID: 11392OAI: oai:DiVA.org:mau-12343DiVA, id: diva2:1409389
Conference
European Conference of Fracture (ECF), Stockholm, Sweden (2004)
Available from: 2020-02-29 Created: 2020-02-29 Last updated: 2022-06-27Bibliographically approved

Open Access in DiVA

fulltext(1133 kB)45 downloads
File information
File name FULLTEXT01.pdfFile size 1133 kBChecksum SHA-512
23aac0c5456682da25e89f8499be34da2d4171035148ba28a9a4ebcbe3b7d87455c1b2c9afe4c4fc733669fc78c213b4da3bac4e2147271bb66417816b7a5636
Type fulltextMimetype application/pdf

Other links

http://www.structuralintegrity.eu/pdf/esis/Documents/Conference/ECF/15/Index.htm

Authority records

Ståhle, Per

Search in DiVA

By author/editor
Ståhle, Per
By organisation
School of Technology (TS)
Applied Mechanics

Search outside of DiVA

GoogleGoogle Scholar
Total: 45 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 8 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf