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Heterogeneous Rock Simulation Using DIP-Micromechanics-Statistical Methods
Joint Authors
Molladavoodi, H.
RahimiRezaei, Y.
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-02-27
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Rock as a natural material is heterogeneous.
Rock material consists of minerals, crystals, cement, grains, and microcracks.
Each component of rock has a different mechanical behavior under applied loading condition.
Therefore, rock component distribution has an important effect on rock mechanical behavior, especially in the postpeak region.
In this paper, the rock sample was studied by digital image processing (DIP), micromechanics, and statistical methods.
Using image processing, volume fractions of the rock minerals composing the rock sample were evaluated precisely.
The mechanical properties of the rock matrix were determined based on upscaling micromechanics.
In order to consider the rock heterogeneities effect on mechanical behavior, the heterogeneity index was calculated in a framework of statistical method.
A Weibull distribution function was fitted to the Young modulus distribution of minerals.
Finally, statistical and Mohr–Coulomb strain-softening models were used simultaneously as a constitutive model in DEM code.
The acoustic emission, strain energy release, and the effect of rock heterogeneities on the postpeak behavior process were investigated.
The numerical results are in good agreement with experimental data.
American Psychological Association (APA)
Molladavoodi, H.& RahimiRezaei, Y.. 2018. Heterogeneous Rock Simulation Using DIP-Micromechanics-Statistical Methods. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1116486
Modern Language Association (MLA)
Molladavoodi, H.& RahimiRezaei, Y.. Heterogeneous Rock Simulation Using DIP-Micromechanics-Statistical Methods. Advances in Civil Engineering No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1116486
American Medical Association (AMA)
Molladavoodi, H.& RahimiRezaei, Y.. Heterogeneous Rock Simulation Using DIP-Micromechanics-Statistical Methods. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1116486
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116486