Cohesive crack analysis of toughness increase due to confining pressure

Pure and Applied Geophysics

Volumn 163, Issue 5-6, 2006, Pages 1059-1072

  Sato, Kazushi ^a   Hashida, Toshiyuki ^b  

^a SENDAI NATIONAL COLLEGE OF TECHNOLOGY   (Japan)

^b TOHOKU UNIVERSITY   (Japan)

Author keywords

Cohesive crack model; Confining pressure; Fracture toughness; Rock; Stress intensity factor

Indexed keywords

CONFINING PRESSURE; CRACK PROPAGATION; CRACKING; FRACTURE TOUGHNESS; MICROCRACK;

EID: 33745096863     PISSN: 00334553     EISSN: 14209136     Source Type: Journal    
DOI: 10.1007/s00024-006-0060-2     Document Type: Conference Paper

References (15)

1. Abou-Sayed, A.S. (1978), An experimental technique for measuring the fracture toughness of rock under downhole stress condition, VDI-Berichte 313, 819-824.
2. Fialko, Y.A. and Rubin, A.M., (1997), Numerical simulation of high-pressure rock tensile fracture experiments: Evidence of an increase in fracture energy with pressure? Int. J. of Geophys. Res. 102-B3, 5231-5242.
3. Funatsu, T., Seto, T., Shimada, H., Matsui, K. and Kuruppu, M. (2004), Combined effects of increasing temperature and confining pressure on the fracture toughness of clay bearing rocks, Int. J. of Rock. Mech. and Min. Sci. 41, 927-938.
4. Hashida, T. Evaluation of fracture processes in granites based on the tension-softening model. In Micromechanics of Failure of Quasi-Brittle Materials (eds. Mihashi, H., Takahashi, H. and Wittmann, F.H.) (Elsevier Applied Science, 1990) pp. 233-243.
5. Hashida, T., Oghikubo, H., Takahashi, H. and Shoji, T. (1993), Numerical simulation with experimental verification of the fracture behavior in granite under confining pressures based on the tension-softening model, Int. J. of Fracture 59, 227-244.
6. Hillerborg, A. Analysis of one single crack, In Fracture Mechanics of Concrete (ed. Wittmann F.H.) (Elsevier Science Publishers B. V., Amsterdam, 1983) pp. 223-250.
7. Labuz, J. F., Shah, S. P. and Dowding, C. H. (1987), The fracture process zone in granite: Evidence and effect, Int. J. Rock. Mech. Min. Sci. and Geomech. Abstr. 24-4, 235-246.
8. Matsuki, K., Kaneko, T. and Sato, T. (1995), K-resistance curve of rock under con.ning pressure, Shigento-Sozai (in Japanese) 111, 755-760.
9. Nishitani, H. (1968), The two-dimensional stress problem solved using an electronic digital computer, Bull. Japan Soc. Mech. Engrs. 11-43, 15-23.
10. Nishitani, H., Saimoto, A. and Noguchi, H. (1990), Versatile method of analysis of two-dimensional elastic problem by body force method (1st Report, Basic Theory), Trans. JSME(A) (in Japanese) 56-530, 2123-2129.
11. Rubin, A.M. (1993), Tensile fracture of rock at high confining pressure: Implications for dike propagation, Int. J. of Geophys. Res. 98-B9, 15, 919-15, 935.
12. Sato, K., Hashida, T. and Takahashi, H. Acoustic emission study of process zone in granite and tension-softening model. In AE/MS Activity in Geological Structures and Materials (ed. Hardy, JR., H.R.) (Trans Tech Publications, 1995) pp. 81-95
13. Schmidt, R.A. and Huddle, C.W. (1977), Effect of confining pressure on fracture toughness of Indiana limestone, Int. J. Rock. Mech. Min. Sci. and Geomech. Abstr. 14, 289-293.
14. Tada, H, Paris, P.C., and Irwin, G.R. (1973a), The Stress Analysis of Cracks Handbook, Del Research Corporation, 3.7
15. Tada, H, Paris, P.C., and Irwin, G.R. (1973b), The Stress Analysis of Cracks Handbook, Del Research Corporation, 3.6