Nonlinear Young’s Modulus of New Red Sandstone: Experimental Studies

Evgenii Riabokon, Vladimir Poplygin, Mikhail Turbakov, Evgenii Kozhevnikov, Dmitrii Kobiakov, Mikhail Guzev, Marian Wiercigroch* (Corresponding Author)

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)
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Abstract

Young’s modulus of New Red Sandstone was investigated experimentally to
gain insight into its nonlinear nature. A large experimental programme was carried out by applying a controllable quasi-static and dynamic uniaxial loading to 286 dry sandstone samples of four different sizes. The static and dynamic tests, similar to those aiming at determining the uniaxial compressive strength, were conducted using the state-of-the-art experimental facilities at the University of Aberdeen including a custom-built small experimental rig for inducing a dynamic uniaxial compressive load via a piezoelectric transducer. The obtained results have confirmed a complex nature of Young’s modulus of sandstone. Specifically, under a harmonic dynamic loading, it shows strongly nonlinear behaviour, which is hardening and softening with respect to frequency and amplitude of the dynamic loading, respectively.
Original languageEnglish
Pages (from-to)989–999
Number of pages11
JournalActa Mechanica Solida Sinica
Volume34
Issue number6
Early online date11 Dec 2021
DOIs
Publication statusPublished - 11 Dec 2021

Bibliographical note

ACKNOWLEDGEMENTS
The authors would like to acknowledge the generous financial support from the Russian Science Foundation (Project No. 19-19-00408).

Keywords

  • sandstone
  • Young’s modulus
  • Static and dynamic loading
  • Experiments
  • Stress and strain
  • Nonlinearity

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