@inproceedings{a99e5b99269e48fc8a7de0abc66fb4ae,
title = "Coupled deformation-pore fluid diffusion effects on the development of localized deformation in fault gouge",
abstract = "Recent experimenss by Finno et al. (1996) suggest that the evoluteon of localized zones in granular materials can be complex and is strongly influenced by local fluid flow even when condition are globally undrained. A simple model of the drained response in terms of the shear stress and porosity dependence on strain is used to calculate the corresponding undrained response. The calculation suggest that relatively small variations in the porosity response can dramatically affect the mdrained shear stress response. The effect of nonuniformity is examined by including a small layer with slightly different prop erties embedded in an infinite body and assuming that fluid mass exchange is proportional to differences in pore pressure.",
author = "Rudnicki, {J. W.} and Finno, {R. J.} and Alarcon, {M. A.} and G. Vlggiani and Mooney, {M. A.}",
note = "Funding Information: Recent laboratory experiments (Elan pied et al., 1992) have indicated that under temperatures and pressures typical of mid-crustal depths, mineral deposition rapidly seals the fault zone from the adjacent country rock. Consequently, it seems likely that fault zones that have recently ruptured seismically a;re hydraulic~lly isolated and, hence, globally undramed. The simple calculations here suggest, however, that the imposed strain level at which localization occurs can be strongly affected by the presence of slight nonuniformities and the coupling of deformation with internal fluid flow. Acknowledgments Partial financial support for this work was provided by t~e U. S. Department of Energy, Office of Basic Energy Sciences, Grant DE-FG02-93ER14344 (JWR, MAA) and by the U. S. National Science Foundation, Grant NSF-BCS-9019755 (RJF and MAM).; ISRM International Symposium - EUROCK 1996 ; Conference date: 02-09-1996 Through 05-09-1996",
year = "1996",
language = "English (US)",
isbn = "9054108436",
series = "ISRM International Symposium - EUROCK 1996",
publisher = "International Society for Rock Mechanics",
pages = "1261--1268",
editor = "Barla",
booktitle = "ISRM International Symposium - EUROCK 1996",
}