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Inversion of ultrasonic wave velocity measurements to obtain the microcrack orientation distribution function in rocks

โœ Scribed by C.M Sayers


Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
95 KB
Volume
35
Category
Article
ISSN
0013-7944

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โœฆ Synopsis


Abatraet-The new failure criterion of rock in plastic strain space is presented upon previous experiment results and the hypothesis that dissipation energy in a material causes failure. The main characteristics and applications to rocks of the criterion are discussed. The criterion can well explain that materials do not exhibit failure at pure hydrostatical pressure and could conveniently be used to predict rock failures at different stress or strain states without appendant assumptions.


๐Ÿ“œ SIMILAR VOLUMES


Inversion of ultrasonic wave velocity me
โœ C.M. Sayers ๐Ÿ“‚ Article ๐Ÿ“… 1990 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 477 KB

The elastic wave velocities in rock are reduced significantly by the presence. of microcracks. As a result of the stress history of the rock these microcracks frequently exhibit some degree of alignment. The rock therefore displays an elastic anisotropy determined by the shape and content of the cra