Experimental Study on Infrared Temperature Characteristics and Failure Modes of Marble with Prefabricated Holes under Uniaxial Compression

Yanyan Peng, Qunchao Lin, Manchao He, Chun Zhu, Haijiang Zhang and Pengfei Guo
Additional contact information
Yanyan Peng: School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
Qunchao Lin: School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
Manchao He: Key Laboratory of Rock Mechanics and Geohazards of Zhejiang Province, Shaoxing 312000, China
Chun Zhu: School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
Haijiang Zhang: School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
Pengfei Guo: School of Civil Engineering, Shaoxing University, Shaoxing 312000, China

Energies, 2021, vol. 14, issue 3, 1-16

Abstract: In rock engineering, it is of great significance to study the failure mechanical behavior of rocks with holes. Using a combination of experiment and infrared detection, the strength, deformation, and infrared temperature evolution behavior of marble with elliptical holes under uniaxial compression were studied. The test results showed that as the vertical axis b of the ellipse increased, the peak intensity first decreased and then increased, and the minimum value appeared when the horizontal axis was equal to the vertical axis. The detection results of the infrared thermal imager showed that the maximum temperature, minimum temperature, and average temperature of the observation area in the loading stage showed a downward trend, and the range of change was between 0.02 °C and 1 °C. It was mainly due to the accumulation of energy in the loading process of the rock sample that caused the surface temperature of the specimen to decrease. In the brittle failure stage, macroscopic cracks appeared on the surface of the rock sample, which caused the energy accumulated inside to dissipate, thereby increasing the maximum temperature and average temperature of the rock sample. The average temperature increase was about 0.05 °C to about 0.19 °C. The evolution of infrared temperature was consistent with the mechanical characteristics of rock sample failure, indicating that infrared thermal imaging technology can provide effective monitoring for the study of rock mechanics. The research in this paper provides new ideas for further research on the basic characteristics of rock failure under uniaxial compression.

Keywords: infrared thermal imaging; uniaxial compression experiment; prefabricated hole marble; stress–strain; temperature field (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/3/713/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/3/713/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:3:p:713-:d:490027

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().