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Rock Mechanics and Rock Engineering

Erschienen in:

01.03.2010 | Original Paper

New Observations on the Brittle Failure Process of Simulated Crystalline Rocks

verfasst von: Hossain Noferesti, K. Seshagiri Rao

Erschienen in: Rock Mechanics and Rock Engineering | Ausgabe 2/2010

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Abstract

A biaxial testing program has been performed to study the process of brittle failure in crystalline rocks. Dental plaster has been selected as a model material, and mixing with different ratios of distilled water, different types of common minerals of crystalline rocks have been simulated in the form of brick-like small elements. These elements have been interlocked together according to four systematic patterns and final specimens with 180 × 180 × 76 mm dimensions have been obtained. Details of different types of cracks observed during loading process, effects of mechanical, geometrical and confining pressure on the cracking intensity, the influence of different types of heterogeneity on the macroscopic properties of a system of interlocked elements, and the sequence of events during the failure process are presented in this paper. Based on these observations, a revised mechanism for brittle failure is proposed.

Vorheriger Artikel Dilation and Spalling in Axially Compressed Beams Subjected to Bending

Nächster Artikel Different Approaches for Simulating Brittle Failure in Two Hard Rock Mass Cases: A Parametric Study

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Titel: New Observations on the Brittle Failure Process of Simulated Crystalline Rocks
verfasst von: Hossain Noferesti
K. Seshagiri Rao
Publikationsdatum: 01.03.2010
Verlag: Springer Vienna
Erschienen in: Rock Mechanics and Rock Engineering / Ausgabe 2/2010
Print ISSN: 0723-2632
Elektronische ISSN: 1434-453X
DOI: https://doi.org/10.1007/s00603-009-0039-z

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