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Asymptotic analysis of boundary-induced size dependence of fracture properties
The recently-developed boundary effect concept and associated asymptotic model are used to explain the size effect phenomena in fracture of quasi-brittle materials. It is demonstrated that the size dependence of the fracture toughness and strength of quasi-brittle materials is indeed due to the influences of specimen boundaries on the failure mode and therefore, on the strength of the specimen. To verify the boundary effect concept, fracture tests on a high strength concrete reported by Karihaloo et al are analysed and predicted using the asymptotic model. The results show that the predictions of the asymptotic boundary effect model agree very well with those experimental results.
Funding
Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)
History
Issue
324-325Start Page
1209End Page
1212Number of Pages
4ISSN
1013-9826Location
SwitzerlandPublisher
Trans Tech Publications Ltd.Language
en-ausPeer Reviewed
- Yes
Open Access
- No
External Author Affiliations
University of Western Australia;Era Eligible
- Yes