This article is cited in 12 papers

Mechanical properties, strength physics and plasticity

Fracture features of granite under various deformation conditions

A. G. Kadomtsev, E. E. Damaskinskaya, V. S. Kuksenko

Ioffe Institute, St. Petersburg

Abstract: Fracture mechanisms of dry and water-saturated granite samples and slip (displacement) along a ready fault have been studied by measuring acoustic emission signals. It has been found that disperse defect formation is observed in dry samples under mechanical load, then localization occurs, and a fracture source is formed, whose development results in macrofault formation. In water saturated samples, chaotic defect formation occurs in the entire volume, which leads to a high degree of material damage. At the closing deformation stage, several fault source zones are formed in which main cracks develop. In the case of slip along a ready fault, stoppers at crack edges are broken.

Received: 21.02.2011

 English version: Physics of the Solid State, 2011, 53:9, 1876–1881

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