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Use of a dislocation-based boundary element model to extract crack growth rates from depth distributions of intergranular stress corrosion cracks

Abstract:

A dislocation-based boundary element model was used to simulate intergranular stress corrosion crack propagation in virtual microstructures. A Monte Carlo approach was used in which the propagation of approximately 100 cracks was calculated for different Voronoi generated microstructures. At every simulation step the model gave the position of the crack tip together with stress intensity factors K I and K II. Using a simple power-law-type crack growth rate da/dt= DpKmp, the depth of each part...

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Publication status:
Published

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Authors


Wilkinson, AJ More by this author
Journal:
ACTA MATERIALIA
Volume:
60
Issue:
13-14
Pages:
5101-5108
Publication date:
2012-08-05
DOI:
ISSN:
1359-6454
URN:
uuid:c05eb618-b41f-4301-a652-24f626d42106
Source identifiers:
344890
Local pid:
pubs:344890

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