Mixed mode (Mode I-II) fracturing of rocks

Erarslan, N. and Williams, D. J. (2010). Mixed mode (Mode I-II) fracturing of rocks. In: Hossain Md. Shahin, Dorival M. Pedroso, Feng Zhang and Atsushi Yashima, New Frontiers in Computational Geotechnics. 5th International Workshop on New Frontiers in Computational Geotechnics NFCOMGEO V, Brisbane, Australia, (151-154). 26-27 July 2010.

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Author Erarslan, N.
Williams, D. J.
Title of paper Mixed mode (Mode I-II) fracturing of rocks
Conference name 5th International Workshop on New Frontiers in Computational Geotechnics NFCOMGEO V
Conference location Brisbane, Australia
Conference dates 26-27 July 2010
Proceedings title New Frontiers in Computational Geotechnics
Place of Publication Nagoya, Japan
Publisher Nagoya Institute of Technology
Publication Year 2010
Sub-type Fully published paper
ISBN 9784877971779
Editor Hossain Md. Shahin
Dorival M. Pedroso
Feng Zhang
Atsushi Yashima
Start page 151
End page 154
Total pages 4
Language eng
Formatted Abstract/Summary
A major challenge in rock fracture mechanics research at its current stage of development is the extrapolation of parameter values measured at laboratory-scale on small, intact rock specimens to large-scale jointed rock masses. Understanding crack growth is therefore very important for assessing the stability of rock masses/materials and for the sage design of structures within rock masses. This study includes dametrical compression tests on inclined Cracked Chevron Notched Brazilian Disc (CCNBD) specimens tested at different loading angles. The experimental results are compared with numerical simulation results obtained using FRANC2D. It was found that notch cracks at the centre of CCNBD specimens opened (Mode I) up to a crack inclination angle (β) of 28°, while crack closure (Mode II) occurred after β = 33°, with closure becoming more pronounced at higher crack inclinations of 45° and 70°. Both experimental and numerical results showed that the crack initiation angle (Ø) is a function of the crack inclination angle (β).
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collection: School of Civil Engineering Publications
 
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Created: Wed, 14 Mar 2012, 23:57:44 EST by Julie Hunter on behalf of School of Civil Engineering