Micro- and macrobehavior of granitic rock: Observations and viscoelastic homogenization analysis

Y. Ichikawa; K. Kawamura; K. Uesugi; Yong Seok Seo; N. Fujii

doi:10.1016/S0045-7825(01)00244-4

Micro- and macrobehavior of granitic rock: Observations and viscoelastic homogenization analysis

Y. Ichikawa, K. Kawamura, K. Uesugi, Yong Seok Seo, N. Fujii

Graduate School of Environmental and Life Science

Research output: Contribution to journal › Article

29 Citations (Scopus)

Abstract

Microscopic structures must be determined for analyzing the behavior of microinhomogeneous materials such as crystalline rocks. We observe a three-dimensional texture of granitic rock by X-ray tomographic microscopy (XTM) images using an ultra-bright synchrotron radiation (SR)-CT system. The time-dependent fracturing behavior of granite for relaxation tests, is, then, observed by microscope under water-saturated triaxial stress conditions. Next, in order to know properties of each constituent mineral and their interfaces, we introduce the Molecular Dynamics (MD) computer simulation method. Based on these facts we establish a micro/ macromodel of granite by a homogenization analysis method to simulate the viscoelastic behavior.

Original language	English
Pages (from-to)	47-72
Number of pages	26
Journal	Computer Methods in Applied Mechanics and Engineering
Volume	191
Issue number	1-2
DOIs	https://doi.org/10.1016/S0045-7825(01)00244-4
Publication status	Published - Nov 9 2001

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Keywords

Crack propagation
Direct observation
Homogenization analysis
Mineral
Relaxation test
Rock
Texture
Viscoelasticity
X-ray tomographic microscopy (XTM)

ASJC Scopus subject areas

Computational Mechanics
Mechanics of Materials
Mechanical Engineering
Physics and Astronomy(all)
Computer Science Applications

Cite this

Ichikawa, Y., Kawamura, K., Uesugi, K., Seo, Y. S., & Fujii, N. (2001). Micro- and macrobehavior of granitic rock: Observations and viscoelastic homogenization analysis. Computer Methods in Applied Mechanics and Engineering, 191(1-2), 47-72. https://doi.org/10.1016/S0045-7825(01)00244-4

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10.1016/S0045-7825(01)00244-4