Fragmentation of Mansurov granite under quasi-static compression

Authors

  • Marina Davydova Institute of Continuous Media Mechanics Ural Branch Russian Academy of Sciences
  • Ivan Panteleev Institute of Continuous Media Mechanics Ural Branch Russian Academy of Sciences
  • Oleg Naimark Institute of Continuous Media Mechanics Ural Branch Russian Academy of Sciences

DOI:

https://doi.org/10.3221/IGF-ESIS.42.18

Keywords:

Fragmentation statistics, Granite fracture, Power law distribution

Abstract

The fragmentation statistics was studied in the quasi-static compression experiments conducted on prismatic specimens of Mansurov granite. The statistical analysis showed that the cumulative fragment mass distribution for granite specimens is well described by a power law function, but the fragment number-sieve size distribution deviates from the power law in the range of are equal to about 1 mm. In order to explain this fact, we investigated the structure of fractured material (Computed Tomography and microstructures study in thin sections). A sharp increase the number of grains in the range of size from to 0.5 mm to 1 mm and a change in the fragment shape (from splinter to oval) allow us to suppose that there is an addition fracture mechanism associated with disintegration of feldspar and amphiboles grains.

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Published

29-09-2017

How to Cite

Fragmentation of Mansurov granite under quasi-static compression. (2017). Frattura Ed Integrità Strutturale, 11(42), Pages 170-180. https://doi.org/10.3221/IGF-ESIS.42.18

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