Publication result detail

Strains of rock during uniaxial compression test

ZÁVACKÝ, M.; ŠTEFAŇÁK, J.

Original Title

Strains of rock during uniaxial compression test

English Title

Strains of rock during uniaxial compression test

Type

WoS Article

Original Abstract

The contribution is focused on investigation of strains in a rock specimen during uniaxial compression test. Three components of strain occur in cylindrical shape specimen: axial, radial and volumetric. Determination of the strains is possible by using of local sensors. Strain gauges fixed on specimen surface were used in this study. Axial and radial components of strain were measured directly, and volumetric strain was calculated. Two types of rock were tested, syenite and sandstone, to illustrate variability of strain behaviour of rocks. Strain measurement is necessary for determination of Young's modulus and Poisson's ratio. Moreover, early states of failure can be identified by volumetric strain which is considerably sensitive to failure states.

English abstract

The contribution is focused on investigation of strains in a rock specimen during uniaxial compression test. Three components of strain occur in cylindrical shape specimen: axial, radial and volumetric. Determination of the strains is possible by using of local sensors. Strain gauges fixed on specimen surface were used in this study. Axial and radial components of strain were measured directly, and volumetric strain was calculated. Two types of rock were tested, syenite and sandstone, to illustrate variability of strain behaviour of rocks. Strain measurement is necessary for determination of Young's modulus and Poisson's ratio. Moreover, early states of failure can be identified by volumetric strain which is considerably sensitive to failure states.

Keywords

Rock mechanics, uniaxial compression test, strains, strain gauge

Key words in English

Rock mechanics, uniaxial compression test, strains, strain gauge

Authors

ZÁVACKÝ, M.; ŠTEFAŇÁK, J.

RIV year

2020

Released

28.10.2019

Publisher

Faculty of Civil Engineering, CTU in Prague

Location

Prague

ISBN

978-80-86433-71-4

Book

JUNIORSTAV 2019 - Sborník příspěvků

ISBN

1805-2576

Periodical

Civil Engineering Journal-Stavebni Obzor

Volume

2019

Number

3

State

Czech Republic

Pages from

398

Pages to

403

Pages count

6

URL

https://civilengineeringjournal.eu/archive/issues/2019/2019_3/3-2019-0032-(398-403).pdf

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@article{BUT155438,
  author="Martin {Závacký} and Jan {Štefaňák}",
  title="Strains of rock during uniaxial compression test",
  journal="Civil Engineering Journal-Stavebni Obzor",
  year="2019",
  volume="2019",
  number="3",
  pages="398--403",
  doi="10.14311/CEJ.2019.03.0032",
  issn="1210-4027",
  url="https://civilengineeringjournal.eu/archive/issues/2019/2019_3/3-2019-0032-(398-403).pdf"
}