Near infrared spectroscopic measurement of strain in rocks

Emily Jane Butcher, Andy Gibson, Philip Benson, Nick Koor, Gareth Swift

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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.
Original languageEnglish
Pages (from-to)432-440
Number of pages9
JournalJournal of Near Infrared Spectroscopy
Volume27
Issue number6
Early online date28 Aug 2019
DOIs
Publication statusPublished - 1 Dec 2019

Keywords

  • Strain Measurement
  • indirect tensile strength
  • near infrared spectroscopy
  • rock

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  • RML: Rock Mechanics Laboratory

    Benson, P. (PI), Koor, N. (CoI), Solana, C. (CoI), Rowley, P. (Research Leader), Bullen, D. (CoI), Azizi, A. (CoI), Clunes Squella, M. (Research Leader), Grant, T. (Team Member), Ibemesi, P. (Team Member) & Massa, G. (Team Member)

    1/02/12 → …

    Project: Research

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