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

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

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)47-72
Number of pages26
JournalComputer Methods in Applied Mechanics and Engineering
Volume191
Issue number1-2
DOIs
Publication statusPublished - 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

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