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Fracture toughness of stripa granite cores
Luleå tekniska universitet.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
1986 (English)In: International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, ISSN 0148-9062, E-ISSN 1879-2073, Vol. 23, no 6, 399-409 p.Article in journal (Refereed) Published
Abstract [en]

There is a growing interest in the study of fracture parameters of rock material, but to date no standard testing method for measuring the fracture toughness of rock exists. Three round specimen configurations, namely the notched beam, the compact specimen, and the short rod were used in this work and different fracture toughness measures evaluated for Stripa granite. Then a comparison with an apparent fracture toughness, K (sub Qm) , obtained from pre-cracked specimens, showed that low K (sub m) values arise because the microcrack growth that precedes crack extension is neglected

Place, publisher, year, edition, pages
1986. Vol. 23, no 6, 399-409 p.
Keyword [en]
Civil engineering and architecture - Geoengineering and mining engineering
Keyword [sv]
Samhällsbyggnadsteknik och arkitektur - Geoteknik och gruvteknik
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-10474DOI: 10.1016/0148-9062(86)92305-3Local ID: 94a8c710-8d3e-11dc-a188-000ea68e967bOAI: oai:DiVA.org:ltu-10474DiVA: diva2:983419
Note
Godkänd; 1986; 20071107 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

Open Access in DiVA

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