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Proceedings Paper

Simulation of the fracture shear dilation
Author(s): Sergei Fomin; Ayumu Shimizu; K. Matsuki; K. Sakaguchi; Toshiyuki Hashida
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Paper Abstract

The cahnges of the stress regime in the natural rocks often cause the fracture shear displacements, which lead (due to fracture surface roughness) to fracture dilation. The simple approach for simulating this natural process is proposed. The method incorporates the experimental measuring of the real fracture surface topography, mathematical modeling of the synthetic fracture lateral slipping (shear dilation). Mathematical model is based on the spectral synthesis method and accounts for the fractal nature of the fracture surfaces. It is shown that the topography of the lengthy fracture surface in the natural rocks can be properly characterized with the data obtained from the small fragments of these surfaces. The algorithm for computing and predicting the fracture dilation and shear dilation angles in the natural rocks as functions of shear offset is proposed.

Paper Details

Date Published: 10 October 2003
PDF: 6 pages
Proc. SPIE 5127, Sixth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (10 October 2003); doi: 10.1117/12.517978
Show Author Affiliations
Sergei Fomin, Tohoku Univ. (Japan)
Ayumu Shimizu, Tohoku Univ. (Japan)
K. Matsuki, Tohoku Univ. (Japan)
K. Sakaguchi, Tohoku Univ. (Japan)
Toshiyuki Hashida, Tohoku Univ. (Japan)


Published in SPIE Proceedings Vol. 5127:
Sixth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering
Alexander I. Melker, Editor(s)

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