Fracture Toughness and Fracture Roughness Interrelationship in Thermally treated Westerly Granite
作者： M. H. B. Nasseri , B. S. A. Tatone , G. Grasselli , R. P. Young
DOI: 10.1007/S00024-009-0476-3
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摘要: This paper presents an experimental work aimed at assessing the correlation between fracture toughness (K IC ) and roughness for a series of Westerly granite specimens thermally treated up to 850°C. Mode I as function thermal treatment is determined using Cracked Chevron Notched Brazilian Disc specimens. The degree resultant surfaces analyzed with aid high accuracy, precision stereo-topometric measurement system. Roughness values display negative temperature. Fracture decreases increasing temperature due gradual opening grain-grain boundaries in response stresses. fractures preferentially follow these weakened boundaries, which addition expansion individual grains, result rougher failure profiles At low temperature, distinct anisotropy was observed all higher value perpendicular direction propagation. However, temperatures resulted homogenization directions. These results confirm important link among petrofabric analysis, toughness, treatment.
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Barry Kean Atkinson, Philip George Meredith, 11 – EXPERIMENTAL FRACTURE MECHANICS DATA FOR ROCKS AND MINERALS Fracture Mechanics of Rock. pp. 477- 525 ,(1987) , 10.1016/B978-0-12-066266-1.50016-8
Gexin Sun, B. N. Whittaker, Raghu N. Singh, Rock Fracture Mechanics: Principles, Design and Applications ,(1992)
C David, B Menéndez, M Darot, Influence of stress-induced and thermal cracking on physical properties and microstructure of La Peyratte granite International Journal of Rock Mechanics and Mining Sciences. ,vol. 36, pp. 433- 448 ,(1999) , 10.1016/S0148-9062(99)00010-8
G. Grasselli, J. Wirth, P. Egger, Quantitative three-dimensional description of a rough surface and parameter evolution with shearing International Journal of Rock Mechanics and Mining Sciences. ,vol. 39, pp. 789- 800 ,(2002) , 10.1016/S1365-1609(02)00070-9
M.R Balme, V Rocchi, C Jones, P.R Sammonds, P.G Meredith, S Boon, Fracture toughness measurements on igneous rocks using a high-pressure, high-temperature rock fracture mechanics cell Journal of Volcanology and Geothermal Research. ,vol. 132, pp. 159- 172 ,(2004) , 10.1016/S0377-0273(03)00343-3
Mokhfi Takarli, William Prince-Agbodjan, Temperature Effects on Physical Properties and Mechanical Behavior of Granite: Experimental Investigation of Material Damage Journal of Astm International. ,vol. 5, pp. 1- 13 ,(2008) , 10.1520/JAI100464
G. Vasconcelos, P. B. Lourenço, M. F. M. Costa, Mode I Fracture Surface of Granite: Measurements and Correlations with Mechanical Properties Journal of Materials in Civil Engineering. ,vol. 20, pp. 245- 254 ,(2008) , 10.1061/(ASCE)0899-1561(2008)20:3(245)
Christopher F. Pearson, Michael C. Fehler, James N. Albright, Changes in compressional and shear wave velocities and dynamic moduli during operation of a hot dry rock geothermal system Journal of Geophysical Research. ,vol. 88, pp. 3468- 3475 ,(1983) , 10.1029/JB088IB04P03468
M. L. Blanpied, C. J. Marone, D. A. Lockner, J. D. Byerlee, D. P. King, Quantitative measure of the variation in fault rheology due to fluid-rock interactions Journal of Geophysical Research: Solid Earth. ,vol. 103, pp. 9691- 9712 ,(1998) , 10.1029/98JB00162
A. Ghassemi, S. Tarasovs, A.H.-D. Cheng, A 3-D study of the effects of thermomechanical loads on fracture slip in enhanced geothermal reservoirs International Journal of Rock Mechanics and Mining Sciences. ,vol. 44, pp. 1132- 1148 ,(2007) , 10.1016/J.IJRMMS.2007.07.016