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Rating: 
Summary: He apply an uncenventional theories to explain rock fracture
Review: He apply methodology already frame by the fractal's matematichians to the best understandig of mechanism of fracture in rocks, as well as brittle and ductile behaviours of rock materials.His description of brittle damages is very interesting because he start from the microdamage linking to the macro damage, using the physical properties of the initial microvoids as well as geometrical relations between mineral crystals, and microcrystalline weak surfaces and orientation of the stresses field. Another good topic analyzed for the author is the dynamic damage in brittle rock. To relate temporal changes with fragiles conditions is an excellent starting point to understand processes of deterioring on physiscal properties of the rocks. In the topic of description of the fractures in practical rock masses, the use of the Fractal Dimension (Df) is very sucessful because the relation between different rock masss conditions is easier using statistical distributions of numerical values of geotecnical descriptions of geometrical features in fractures than classical descriptions of qualitative numbers assigned using conventional methods. Of course if your target is a fast initial correlation. Fabio Antonio Gil Escobar Special Graduate Course Department of Geoscienc Faculty of Science and Engineering Japan (Asia)
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