Mechanism of rock fatigue damage in terms of fracturing modes

Erarslan, N. and Williams, D. J. (2012) Mechanism of rock fatigue damage in terms of fracturing modes. International Journal of Fatigue, 43 76-89. doi:10.1016/j.ijfatigue.2012.02.008

Author Erarslan, N.
Williams, D. J.
Title Mechanism of rock fatigue damage in terms of fracturing modes
Journal name International Journal of Fatigue   Check publisher's open access policy
ISSN 0142-1123
Publication date 2012-10
Sub-type Article (original research)
DOI 10.1016/j.ijfatigue.2012.02.008
Volume 43
Start page 76
End page 89
Total pages 14
Place of publication Oxford, United Kingdom
Publisher Elsevier
Collection year 2013
Language eng
Formatted abstract
A novel outcome of the research described is the observation of the effect of indirect tensile cyclic loading on the fracture toughness (KIC) of rocks. A maximum reduction of the static KIC of 46% was obtained for the highest amplitude dynamic cyclic loading test. A second series of cyclic tests showed that the 45° and 70° inclined chevron notch cracks opened from the beginning of the cyclic loading test, whereas under monotonic loading, the chevron notch cracks closed up to failure. When compared with static rupture, the detailed scanning electron microscope (SEM) examinations showed that fatigue damage in Brisbane tuff is strongly influenced by the failure of the matrix, due to both intergranular fracturing and transgranular fracturing, whereas smooth and bright cracks were formed along cleavage planes under static loading.
Keyword Rock fatigue
CCNBD specimen
Tensile cyclic loading
Rock fracture toughness
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2013 Collection
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Citation counts: TR Web of Science Citation Count  Cited 10 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 13 times in Scopus Article | Citations
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Created: Mon, 23 Jul 2012, 17:17:04 EST by System User on behalf of School of Civil Engineering