Piezoelectric effect does not contribute in thermal drilling of quartz bearing rocks

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Abstract

This paper presents a numerical study on a possible piezoelectric effect in thermal drilling of Quartz bearing rocks. For this end, the governing piezoelectro-thermo-mechanical problem is solved with the finite element method. The granitic rock material, consisting of Quartz, Feldspar and Biotite minerals, is taken as linear elastic but heterogeneous and anisotropic. Temperature dependence of material properties is neglected. The simulation demonstrates that the secondary stresses arising from converse piezoelectric effect are three orders of magnitude smaller than the primary thermal stresses, which means that the piezoelectric effect is negligible.
Original languageEnglish
Title of host publicationMechanics and Rock Engineering, from Theory to Practice
Subtitle of host publicationIOP Conference Series: Earth and Environmental Science
PublisherIOP Publishing
Volume833
DOIs
Publication statusPublished - 2021
Publication typeA4 Article in a conference publication
EventEUROCK2021 (Online event): Mechanics and Rock Engineering, from Theory to Practice -
Duration: 21 Sep 202124 Sep 2021
https://eurock2021.com/

Publication series

NameIOP Conference Series: Earth and Environmental Science
PublisherIOP Publishing
Volume833
ISSN (Electronic)1755-1315

Conference

ConferenceEUROCK2021 (Online event)
Abbreviated titleEUROCK2021
Period21/09/2124/09/21
Internet address

Publication forum classification

  • Publication forum level 0

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