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http://hdl.handle.net/10397/94063
Title: | A Novel Approach to Surface Strain Measurement for Cylindrical Rock Specimens Under Uniaxial Compression Using Distributed Fibre Optic Sensor Technology | Authors: | Lin, SQ Tan, DY Yin, JH Li, H |
Issue Date: | Dec-2021 | Source: | Rock mechanics and rock engineering, Dec. 2021, v. 54, no. 12, p. 6605-6619 | Abstract: | This study proposes a novel approach to surface strain measurement for cylindrical rock specimens subjected to uniaxial compression using distributed fibre optic sensing technology. The capability and accuracy of this approach in measuring the full-field strain distribution of a rock specimen have been verified by a series of uniaxial compressive strength (UCS) tests on cylindrical specimens of aluminium alloy, sandstone, and granite. By analysing the experimental results, this new approach also has the potential of being utilized to detect the potential failure locations and sequence through strain localization zone variations and estimation of the development of crack opening displacement and rock fracturing characteristics during the loading and unloading process. Detailed installation procedures are provided for this study for assistance in the use of this new approach. The boundary issue of fibre measurements is identified, and solved by extending the bonding length of the measuring fibre. | Keywords: | Distributed fibre optic sensor Failure analysis Rock mechanics experiments Strain field measurement Uniaxial compression test |
Publisher: | Springer | Journal: | Rock mechanics and rock engineering | ISSN: | 0723-2632 | DOI: | 10.1007/s00603-021-02648-z | Rights: | © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2021 This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use (https://www.springernature.com/gp/open-research/policies/accepted-manuscript-terms), but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s00603-021-02648-z. |
Appears in Collections: | Journal/Magazine Article |
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Lin_Surface_Strain_Measurement.pdf | Pre-Published version | 3.13 MB | Adobe PDF | View/Open |
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