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Relationship between Rock Fracture Toughness and Physical Properties 被引量:1
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作者 zhao zhenfeng chen mian 《Petroleum Science》 SCIE CAS CSCD 2006年第1期56-60,共5页
The relationship between shale toughness and its mechanical parameters is of significance for predicting the shale toughness at a great depth based on the geophysical logging data. A large amount of experiments is per... The relationship between shale toughness and its mechanical parameters is of significance for predicting the shale toughness at a great depth based on the geophysical logging data. A large amount of experiments is performed for toughness measurement of the artificial shale specimens of thick-wall cylinder, with internal pressures applied. Moreover, the finite element method is used to interpret the toughness. The acoustic speeds of the specimens are measured and the relationships between shale toughness and the mechanical parameters, which are almost linear, are established. 展开更多
关键词 Rock toughness physical properties finite element method mechanical
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