Digital Image Based Modeling of Rock Failure at Meso-Scale

Abstract:

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This paper presents a new meso-mechanical analysis method of rock failure. The actual inhomogeneity of rock at meso-scale level is represented by processing the image of rock section and incorporated into Realistic Failure Process Analysis code (abbreviated as RFPA2D). Here, this numerical tool is employed to study the fracture phenomena of granite sample considering the interface strength between mineral grains. Numerical results show that interface strength has significant influence on the strength of sample and its failure mode. The larger the interface strength is, the more brittle rock samples become and the strength is bigger. With the interface strength increasing, failure mode gradually varies from intergranular frature to transgranular fracture.

Info:

Periodical:

Key Engineering Materials (Volumes 353-358)

Edited by:

Yu Zhou, Shan-Tung Tu and Xishan Xie

Pages:

945-948

DOI:

10.4028/www.scientific.net/KEM.353-358.945

Citation:

Q. L. Yu et al., "Digital Image Based Modeling of Rock Failure at Meso-Scale", Key Engineering Materials, Vols. 353-358, pp. 945-948, 2007

Online since:

September 2007

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Price:

$35.00

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