THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Ming Li

,

Lin Gang

,

Xianbiao Mao

DYNAMIC FRACTURE AND ENERGY CONSUMPTION CHARACTERISTICS OF COAL-SERIES SANDSTONE AFTER HEAT TREATMENT

ABSTRACT
In this paper, the dynamic loading tests of sandstone after heat treatment at 25-800°C are carried out by using the split Hopkinson pressure bar test system. Combined with the theory of energy dissipation, the dynamic fracture and energy consumption characteristics of coal-series sandstone are systematically studied. The test results illustrate that the dynamic fracture and energy consumption characteristics of sandstone are mainly related to the changes of internal moisture and cementing materials.
KEYWORDS
heat treatment, coal-series sandstone, strain rate, surface energy
PAPER SUBMITTED: 2018-07-12
PAPER REVISED: 2018-09-15
PAPER ACCEPTED: 2018-11-19
PUBLISHED ONLINE: 2019-06-08
DOI REFERENCE: https://doi.org/10.2298/TSCI180612248L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Supplement 3, PAGES [S967 - S974]
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Dynamic fracture and energy consumption characteristics of coal-series sandstone after heat treatment

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence