Articles | Volume 24, issue 3
Research article
 | Highlight paper
05 Sep 2017
Research article | Highlight paper |  | 05 Sep 2017

Extracting real-crack properties from non-linear elastic behaviour of rocks: abundance of cracks with dominating normal compliance and rocks with negative Poisson ratios

Vladimir Y. Zaitsev, Andrey V. Radostin, Elena Pasternak, and Arcady Dyskin


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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Arcady Dyskin on behalf of the Authors (07 Jul 2017)  Author's response   Manuscript 
ED: Publish as is (07 Jul 2017) by Sergey Turuntaev
AR by Arcady Dyskin on behalf of the Authors (17 Jul 2017)
Short summary
A new method of analysing pressure wave dependences is presented and tested against the published experimental data. Upon the results of examination of more than 90 rock samples, it was found that a significant portion of rocks (~ 45 %) exhibit negative Poisson ratios at lower pressures. Such a significant number of naturally auxetic rocks suggests that the occurrence of negative Poisson ratios is not as exotic as assumed previously.