Conference item

Dislocation modelling of stage I fatigue crack growth

Abstract:: A simulation of the dynamics of generation, motion and interaction of dislocations in the stress field ahead of a mode II crack under a cyclic loading is presented. The cyclic plastic displacement at the crack tip allows the growth rate to be determined. Crack growth rate curves show an inherent threshold DeltaK(th) below which no crack growth takes place. The simulations show that DeltaK(th) and near threshold crack growth rates are sensitive to the load ratio in accord with experiment. The retardation of cracks growing toward a microstructural barrier is investigated with the simulation.

Publication status:: Published

Actions

Email

Email this record

Send the bibliographic details of this record to your email address.

Your Email
Please enter the email address that the record information will be sent to.

-
Your message (optional)
Please add any additional information to be included within the email.
Share
Cite

Cite this record

APA Style

Wilkinson, A., & Roberts, S. (1999). Dislocation modelling of stage I fatigue crack growth. 7th International Fatigue Congress (Fatigue '99), 673–678.

MLA Style

Wilkinson, A, and S Roberts. “Dislocation Modelling of Stage I Fatigue Crack Growth.” 7th International Fatigue Congress (Fatigue '99), 1999, pp. 673–78.

Chicago Style

Wilkinson, A, and S Roberts. 1999. “Dislocation Modelling of Stage I Fatigue Crack Growth.” In 7th International Fatigue Congress (Fatigue '99), 673–78.
Print

Authors

+ Wilkinson, A More by this author

Role:: Author

+ Roberts, S More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Materials
Role:: Author

Journal:: FATIGUE '99: PROCEEDINGS OF THE SEVENTH INTERNATIONAL FATIGUE CONGRESS, VOLS 1-4 More from this journal
Pages:: 673-678
Publication date:: 1999-01-01
Event title:: 7th International Fatigue Congress (Fatigue '99)
ISBN:: 7040075822

Keywords:: PROPAGATION
Pubs id:: pubs:25491
UUID:: uuid:f0661776-9b48-4894-987f-276fc6f0d033
Local pid:: pubs:25491
Source identifiers:: 25491
Deposit date:: 2012-12-19
ARK identifier:: ark:/29072/ora_f06617769b484894987f276fc6f0d033

Terms of use

Copyright date:: 1999

Licence:: Terms and Conditions of Use for Oxford University Research Archive

Views and Downloads

About views and downloads

If you are the owner of this record, you can report an update to it here: Report update to this record

TO TOP