Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/97836
Title: | The Brazilian disc test for rock mechanics applications : review and new insights | Authors: | Li, Diyuan Wong, Louis Ngai Yuen |
Keywords: | DRNTU::Engineering::Environmental engineering | Issue Date: | 2012 | Source: | Li, D., & Wong, L. N. Y. (2013). The Brazilian Disc Test for Rock Mechanics Applications: Review and New Insights. Rock Mechanics and Rock Engineering, 46(2), 269-287. | Series/Report no.: | Rock mechanics and rock engineering | Abstract: | The development of the Brazilian disc test for determining indirect tensile strength and its applications in rock mechanics are reviewed herein. Based on the history of research on the Brazilian test by analytical, experimental, and numerical approaches, three research stages can be identified. Most of the early studies focused on the tensile stress distribution in Brazilian disc specimens, while ignoring the tensile strain distribution. The observation of different crack initiation positions in the Brazilian disc has drawn a lot of research interest from the rock mechanics community. A simple extension strain criterion was put forward by Stacey (Int J Rock Mech Min Sci Geomech Abstr 18(6):469–474, 1981) to account for extension crack initiation and propagation in rocks, although this is not widely used. In the present study, a linear elastic numerical model is constructed to study crack initiation in a 50-mm-diameter Brazilian disc using FLAC3D. The maximum tensile stress and the maximum tensile strain are both found to occur about 5 mm away from the two loading points along the compressed diameter of the disc, instead of at the center of the disc surface. Therefore, the crack initiation point of the Brazilian test for rocks may be located near the loading point when the tensile strain meets the maximum extension strain criterion, but at the surface center when the tensile stress meets the maximum tensile strength criterion. | URI: | https://hdl.handle.net/10356/97836 http://hdl.handle.net/10220/12200 |
DOI: | 10.1007/s00603-012-0257-7 | Schools: | School of Civil and Environmental Engineering | Rights: | © 2012 Springer-Verlag. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | CEE Journal Articles |
SCOPUSTM
Citations
1
536
Updated on Mar 22, 2024
Web of ScienceTM
Citations
1
439
Updated on Oct 27, 2023
Page view(s) 10
782
Updated on Mar 27, 2024
Google ScholarTM
Check
Altmetric
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.