Fatigue properties of intact sandstone samples subjected to dynamic uniaxial cyclical loading

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F04%3A00011140" target="_blank" >RIV/61989100:27350/04:00011140 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Fatigue properties of intact sandstone samples subjected to dynamic uniaxial cyclical loading

Original language description

In this paper, the fatigue behaviour of intact sandstone samples obtained from a rockburst prone coal mine and studied under dynamic uniaxial cyclic loading in the laboratory is presented. Tests were conducted on dry and saturated samples with loading frequencies ranging from 0.1, 1 and 10 Hz and amplitudes of 0.05, 0.1 and 0.15 mm. From the laboratory investigations, it was found that the loading frequency, as well as the amplitude, was of great signi.cance and in.uenced the rock behaviour in dynamic cyclic loading conditions. The dynamic fatigue strength and the dynamic axial stiffness of the rock reduced with loading frequencies and amplitude. The dynamic modulus was found to increase with the loading frequency but decrease with the amplitude. In the case of the saturated samples, it was found that the dynamic fatigue strength reduced by approximately 30 per cent, while the dynamic Young's modulus reduced by about 20 per cent. From the presented study, the dynamic energy was found t

Czech name

Únavové vlastnosti neporušeného pískovce vystavené dynamickému jednoosému cyklickému zatěžování

Czech description

V článku jsou popisovány únavové vlastnosti neporušeného pískovce vystavené dynamickému jednoosému cyklickému zatěžování. K tomuto studiu byl využit lis umožňující statické i dynamické zatěžování. Měření bylo prováděno o frekvencích 0.1, 1 and 10 Hz a amlitudách of 0.05, 0.1 and 0.15 mm.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DH - Mining industry including coal mining and processing

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2004

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

International Journal of Rock Mechanics and Mining Sciences

ISSN

1365-1609

e-ISSN

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Volume of the periodical

42

Issue of the periodical within the volume

2

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

330

Pages from-to

237-250

UT code for WoS article

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EID of the result in the Scopus database

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