Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/14345
Title: Micromechanical model of rough contact between rock blocks with application to wave propagation
Authors: Misra, Anil S.
Marangos, Orestes 
Keywords: Effective stiffness;Micromechanics;Rock joint;Rough contact;Wave propagation
Category: Civil Engineering
Field: Engineering and Technology
Issue Date: 13-Aug-2008
Source: Acta Geophysica, 2008, vol. 56, iss. 4, pp. 1109-1128
Journal: Acta Geophysica 
Abstract: The relationship between effective stiffness of rough contacts of rock blocks and transmission of plane waves is well known. Effective stiffness of a rough contact may be related to the force-deformation behavior of the asperity contacts and the statistical description of rock joint surface topography through micromechanical methods. In this paper, a micromechanical methodology for computing the overall rock contact effective stiffness is utilized along with the imperfectly bonded interface model to investigate how transmitted and reflected wave amplitudes are affected by the incident wave frequency, rock joint closure and the existing rock joint normal stress conditions. As a result, expressions for reflected and transmitted wave amplitudes as well as group time delay of the wave-packets are obtained and parametrically evaluated. © Versita Warsaw and Springer-Verlag Berlin Heidelberg 2008.
ISSN: 1895-7455
DOI: 10.2478/s11600-008-0050-x
Collaboration : University of Kansas
Rights: © Institute of Geophysics, Polish Academy of Sciences
Type: Article
Appears in Collections:Άρθρα/Articles

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