5[1]Nelson C,Wang C Y.Non-destructive observation of internal cracks in stressed rocks[J].Int.J.Rock Mech.Min.Sci.& Geomech.Abstr.,1977,14(2):103～107
6[2]Potter J M.Experimental permeability studies at elevated temperature and pressure of granitic rocks[R].Los Alamos:Los Alamos Scientific Laboratory Rep.,LA-7224-T,1978
7[3]Wu C C,Freiman S W,Rice R W,et al.Microstructural aspects of crack propagation in ceramics[J].J.Material Sci.,1978,13:2 659～2 670
8[4]Alber M,Hauptfleisch U.Generation and visualization of micro-fractures in Carrara marble for estimating fracture toughness,fracture shear and fracture nomal stiffness[J].Int.J.Rock Mech.Min.Sci.,1999,36(8):1 065～1 071
9[5]Baldridge S,Simmons G.Progresses in micro-crack decoration[R].Washington:Section of Tectonophysics,EOS,1971,52:342～342
10[6]Simmons G,Todd T,Baldridge W S.Toward a quantitative relationship between elastic properties and cracks in low porosity rocks[J].Am.J.Sci.,1975,275(3):318～345
7Helruszczak S T,Mroz Z.Finite element analysis of deformation of strain softening materials[J].International Journal of Numerical Methods In Engincering,1981,17(3):327-334.
8Prevost JH,HughesT J.Finite element solution of elastic-plastic boundary value problems[J].Journal of Applied Mechanics,1984,48(1):69-74.
9Ge Xiurun.Post failure behaviour and a brittle-piastic model of brittle rock[C]//Computer Methods and Advances in Geomechanics.Rouerdam:Balkema,1997:151-160.
10Pietruszczak S T, Mroz Z. Finite element analysis of deformation of strain-softening materials[J]. International Journal of Numerical Methods in Engineering, 1981, 17(3): 327 - 334.
