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Theoretical and experimental study of 3-D initial fracture and its significance to faulting |
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| Authors: | Shiyu Li Taiming He Chunkai Teng Xuyao Zheng Kuksenko Viktor Institute of Geophysics China Earthquake Administration Beijing China Institute of Geology Geophysics Chinese Academy of Sciences Beijing China A F Ioffe Physical-Technical Institute Russian Academy of Sciences St.Petersburg Russia |
| Affiliation: | Shiyu Li~(1,) Taiming He~1 Chunkai Teng~2 Xuyao Zheng~1 and Kuksenko Viktor~3 1 Institute of Geophysics,China Earthquake Administration,Beijing 100081,China 2 Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China 3 A F Ioffe Physical-Technical Institute,Russian Academy of Sciences,St.Petersburg 194021,Russia |
| Abstract: | The experimental results of 3-D fracture under compression are introduced in brief and the theory of stress criterion of 3-D fracture is studied.Methods to imitate initial fractures are developed.It is pointed that there are important defects in the extreme value(EV)method ever proposed by Palaniswamy and Knauss. The major defect lies in that only two Euler angles(2EA)are considered,but another one is neglected.If the variation of all the three Euler angles(3EA)are considered,one can get better result which... |
| Keywords: | fracture mechanics 3-D fracture fault fracture criterion |
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