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Near infrared spectroscopic measurement of strain in rocks

Butcher, E; Gibson, A; Benson, PM; Koor, N; Swift, G; (2019) Near infrared spectroscopic measurement of strain in rocks. Journal of Near Infrared Spectroscopy , 27 (6) pp. 432-440. 10.1177/0967033519872540. Green open access

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Abstract

The measurement of strain is a fundamental and widely studied parameter in engineering, rock mechanics, construction and materials testing. Contact sensors often used in these fields require contact with the target surface throughout the duration of a strain event. Non-contact methods typically require that that the measurement surface is prepared and often coated prior to testing. This paper considers the potential application of near infrared spectroscopy as a non-contact technique for the measurement of strain on natural surfaces. Excellent correlation was found between surface measurements of visible-NIR spectra and longitudinal strain taken during indirect Brazilian Disc Test for samples of sandstone, marble and basalt.

Type: Article
Title: Near infrared spectroscopic measurement of strain in rocks
Open access status: An open access version is available from UCL Discovery
DOI: 10.1177/0967033519872540
Publisher version: https://doi.org/10.1177/0967033519872540
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Strain measurement, near infrared spectroscopy, indirect tensile strength, rock
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/10117606
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