Fragmentation of Mansurov granite under quasi-static compression

Frattura ed Integrità Strutturale

关键词: Fragmentation statistics;    Granite fracture;    Power law distribution;   

DOI  :  10.3221/IGF-ESIS.42.18

来源: DOAJ

【 摘 要 】

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

【 授权许可】

Unknown