1Franc3D Menu & Dialog Reference[EB]. http://www. cfg. cornell. edu/, 2003.
2ISRM Testing Commission. Suggested method for determining mode I fracture toughness using cracked chevron notched Brazilian disc (CCNBD) specimens[J]. Int J Rock Mech Min Sci Geomech Abstr,1995,32:57-64.
3OSM Menu and Dialog Reference[EB]. http: //www. cfg. cornell. edu/, 2003.
4OSM FEM To OSM Translator Reference[EB].http://www. cfg. cornell. edu/, 2003.
