- Title
- Computing elastic moduli of igneous rocks using modal composition and effective medium theory
- Creator
- Aligholi, Saeed; Khandelwal, Manoj
- Date
- 2022
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/192245
- Identifier
- vital:17946
- Identifier
-
https://doi.org/10.3390/geosciences12110413
- Identifier
- ISSN:2076-3263
- Abstract
- Elastic constants of rock materials are the basic parameters required for modeling the response of rock materials under mechanical loads. Experimental tests for determining these properties are expensive, time-consuming and suffer from a high uncertainty due to both experimental limitations and the heterogeneous nature of rock materials. To avoid such experimental difficulties, in this paper a method is suggested for determining elastic constants of rock materials by determining their porosity and modal composition and employing effective medium theory. The Voigt–Reuss–Hill average is used to determine effective elastic constants of the studied igneous rocks according to the elastic moduli of their mineral constituents. Then, the effect of porosity has been taken into account by considering rock as a two-phase material, and the Kuster–Toksoz formulation is used for providing a close estimation of different moduli. The solutions are provided for different isotropic igneous rocks. This sustainable method avoids destructive tests and the usage of energy for performing time-consuming and expensive tests and requires simple equipment. © 2022 by the authors.
- Publisher
- MDPI
- Relation
- Geosciences (Switzerland) Vol. 12, no. 11 (2022), p.
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
- Rights
- https://creativecommons.org/licenses/by/4.0/
- Rights
- Copyright © 2022 by the authors
- Rights
- Open Access
- Subject
- 3705 Geology; 3706 Geophysics; Elasticity; Kuster–Toksoz formulation; Mineralogy; Voigt–Reuss–Hill average
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