This article is cited in 1 paper

Investigation of dynamic fracture of sandstone rocks based on the incubation time criterion

A. N. Martem'yanov^a, Yu. V. Petrov<sup>ab

a</sup> St. Petersburg State University, St. Petersburg, 199034, Russia
^b Institute for Mechanics at the Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, 603600, Russia

Abstract: Available results of laboratory investigations of the dynamic strength of various rock types are analyzed with the use of the incubation time criterion in both compression and tension cases. Based on this approach, a theoretical curve is constructed, which describes the increase in the ultimate stress of sample fracture for some types of sandstone. Incubation times for all materials considered in the study are estimated.

Keywords: dynamic strength, pulsed loading, split Hopkinson bar, incubation time, rock, sandstone, porosity, saturation.

UDC: 620.178.7

Received: 27.09.2018
Revised: 27.09.2018
Accepted: 26.11.2018

DOI: 10.15372/PMTF20190317

 English version: Journal of Applied Mechanics and Technical Physics, 2019, 60:3, 539–547

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