A numerical analysis of weakening of a granitic rock by piezoelectric excitation of quartz

Arturo Rubio Ruiz; Timo Saksala; Pascal-Alexandre Kane; Mikko Hokka

A numerical analysis of weakening of a granitic rock by piezoelectric excitation of quartz

Arturo Rubio Ruiz, Timo Saksala, Pascal-Alexandre Kane, Mikko Hokka

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

20 Downloads (Pure)

Abstract

This work presents a numerical model to simulate intergranular damage in a granitic rock by oscillating piezoelectric excitation of quartz dispersed in the structure. The damage evolution at grain boundaries was assumed to be related to fatigue and it was modelled using cohesive elements and a damage evolution model formulated in terms of discipation of mechanical work. An explicit
representation of the granular mesostructure was built, and it was subjected to high-voltage alternating-current exitation. The effect of the fatigue damage on the mechanical properties was quantified by simulated tension and compression tests. The numerical results show that the electrical treatment can potentially cause rock weakening due to fatigue, but the model needs to be calibrated with experimental data for a quantitative analysis.

Original language	English
Title of host publication	Proceedings of the ISRM 15th International Congress on Rock Mechanics and Rock Engineering & 72nd Geomechanics Colloquium
Subtitle of host publication	Challenges in Rock Mechanics and Rock Engineering
Editors	W. Schubert, A. Kluckner
Publisher	Austrian Society for Geomechanics
Pages	1852-1857
ISBN (Electronic)	978-3-9503898-3-8
Publication status	Published - 2023
Publication type	A4 Article in conference proceedings
Event	ISRM International Congress on Rock Mechanics - Salzburg, Switzerland Duration: 9 Oct 2023 → 14 Oct 2023

Conference

Conference	ISRM International Congress on Rock Mechanics
Country/Territory	Switzerland
City	Salzburg
Period	9/10/23 → 14/10/23

Publication forum classification

Publication forum level 0

Access to Document

ISRM2023_2
This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited
Final published version, 1.66 MBLicence: Unspecified

https://eposter.at/ISRM2023/data/T13.htmlLicence: Unspecified
https://urn.fi/URN:NBN:fi:tuni-202311139584Licence: Unspecified

Advanced mechanics of materials
Hokka, M. (Contact), Mohanty, G. (Contact) & Isakov, M. (Contact)
Materials Science and Environmental Engineering
Facility/equipment: Facility

Cite this

Rubio Ruiz, A., Saksala, T., Kane, P.-A., & Hokka, M. (2023). A numerical analysis of weakening of a granitic rock by piezoelectric excitation of quartz. In W. Schubert, & A. Kluckner (Eds.), Proceedings of the ISRM 15th International Congress on Rock Mechanics and Rock Engineering & 72nd Geomechanics Colloquium: Challenges in Rock Mechanics and Rock Engineering (pp. 1852-1857). Austrian Society for Geomechanics. https://eposter.at/ISRM2023/data/T13.html

Rubio Ruiz, Arturo ; Saksala, Timo ; Kane, Pascal-Alexandre et al. / A numerical analysis of weakening of a granitic rock by piezoelectric excitation of quartz. Proceedings of the ISRM 15th International Congress on Rock Mechanics and Rock Engineering & 72nd Geomechanics Colloquium: Challenges in Rock Mechanics and Rock Engineering. editor / W. Schubert ; A. Kluckner. Austrian Society for Geomechanics, 2023. pp. 1852-1857

@inproceedings{208e1bb6299d42319f9c18fae007aa02,

title = "A numerical analysis of weakening of a granitic rock by piezoelectric excitation of quartz",

abstract = "This work presents a numerical model to simulate intergranular damage in a granitic rock by oscillating piezoelectric excitation of quartz dispersed in the structure. The damage evolution at grain boundaries was assumed to be related to fatigue and it was modelled using cohesive elements and a damage evolution model formulated in terms of discipation of mechanical work. An explicit representation of the granular mesostructure was built, and it was subjected to high-voltage alternating-current exitation. The effect of the fatigue damage on the mechanical properties was quantified by simulated tension and compression tests. The numerical results show that the electrical treatment can potentially cause rock weakening due to fatigue, but the model needs to be calibrated with experimental data for a quantitative analysis. ",

author = "{Rubio Ruiz}, Arturo and Timo Saksala and Pascal-Alexandre Kane and Mikko Hokka",

year = "2023",

language = "English",

pages = "1852--1857",

editor = "W. Schubert and A. Kluckner",

booktitle = "Proceedings of the ISRM 15th International Congress on Rock Mechanics and Rock Engineering & 72nd Geomechanics Colloquium",

publisher = "Austrian Society for Geomechanics",

note = "ISRM International Congress on Rock Mechanics ; Conference date: 09-10-2023 Through 14-10-2023",

}

Rubio Ruiz, A, Saksala, T, Kane, P-A & Hokka, M 2023, A numerical analysis of weakening of a granitic rock by piezoelectric excitation of quartz. in W Schubert & A Kluckner (eds), Proceedings of the ISRM 15th International Congress on Rock Mechanics and Rock Engineering & 72nd Geomechanics Colloquium: Challenges in Rock Mechanics and Rock Engineering. Austrian Society for Geomechanics, pp. 1852-1857, ISRM International Congress on Rock Mechanics, Salzburg, Switzerland, 9/10/23. <https://eposter.at/ISRM2023/data/T13.html>

A numerical analysis of weakening of a granitic rock by piezoelectric excitation of quartz. / Rubio Ruiz, Arturo; Saksala, Timo; Kane, Pascal-Alexandre et al.
Proceedings of the ISRM 15th International Congress on Rock Mechanics and Rock Engineering & 72nd Geomechanics Colloquium: Challenges in Rock Mechanics and Rock Engineering. ed. / W. Schubert; A. Kluckner. Austrian Society for Geomechanics, 2023. p. 1852-1857.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

TY - GEN

T1 - A numerical analysis of weakening of a granitic rock by piezoelectric excitation of quartz

AU - Rubio Ruiz, Arturo

AU - Saksala, Timo

AU - Kane, Pascal-Alexandre

AU - Hokka, Mikko

PY - 2023

Y1 - 2023

N2 - This work presents a numerical model to simulate intergranular damage in a granitic rock by oscillating piezoelectric excitation of quartz dispersed in the structure. The damage evolution at grain boundaries was assumed to be related to fatigue and it was modelled using cohesive elements and a damage evolution model formulated in terms of discipation of mechanical work. An explicit representation of the granular mesostructure was built, and it was subjected to high-voltage alternating-current exitation. The effect of the fatigue damage on the mechanical properties was quantified by simulated tension and compression tests. The numerical results show that the electrical treatment can potentially cause rock weakening due to fatigue, but the model needs to be calibrated with experimental data for a quantitative analysis.

AB - This work presents a numerical model to simulate intergranular damage in a granitic rock by oscillating piezoelectric excitation of quartz dispersed in the structure. The damage evolution at grain boundaries was assumed to be related to fatigue and it was modelled using cohesive elements and a damage evolution model formulated in terms of discipation of mechanical work. An explicit representation of the granular mesostructure was built, and it was subjected to high-voltage alternating-current exitation. The effect of the fatigue damage on the mechanical properties was quantified by simulated tension and compression tests. The numerical results show that the electrical treatment can potentially cause rock weakening due to fatigue, but the model needs to be calibrated with experimental data for a quantitative analysis.

M3 - Conference contribution

SP - 1852

EP - 1857

BT - Proceedings of the ISRM 15th International Congress on Rock Mechanics and Rock Engineering & 72nd Geomechanics Colloquium

A2 - Schubert, W.

A2 - Kluckner, A.

PB - Austrian Society for Geomechanics

T2 - ISRM International Congress on Rock Mechanics

Y2 - 9 October 2023 through 14 October 2023

ER -

Rubio Ruiz A, Saksala T, Kane PA, Hokka M. A numerical analysis of weakening of a granitic rock by piezoelectric excitation of quartz. In Schubert W, Kluckner A, editors, Proceedings of the ISRM 15th International Congress on Rock Mechanics and Rock Engineering & 72nd Geomechanics Colloquium: Challenges in Rock Mechanics and Rock Engineering. Austrian Society for Geomechanics. 2023. p. 1852-1857

A numerical analysis of weakening of a granitic rock by piezoelectric excitation of quartz

Abstract

Conference

Publication forum classification

Access to Document

Fingerprint

Equipment

Advanced mechanics of materials

Cite this