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Keywords: residual strain
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Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-680
... 20GPa in some rocks. We have also found that the residual strain is relevant to the increase in the rock stiffness under repeated load. This relationship seems to be similar among different rock types. Upstream Oil & Gas crack closure loading Reservoir Characterization volumetric strain...
Proceedings Papers

Paper presented at the The 26th U.S. Symposium on Rock Mechanics (USRMS), June 26–28, 1985
Paper Number: ARMA-85-0557-1
... problems in advance. Rock in situ has been subjected to the three principal stresses for a long time, and is in a saturated state of strain. (Hereafter, the saturated state of strain is defined as the state in which residual strain is sufficiently generated and in which no further strain can be recognized...
Proceedings Papers

Paper presented at the The 24th U.S. Symposium on Rock Mechanics (USRMS), June 20–23, 1983
Paper Number: ARMA-83-0751
...-load, Brazilian and triaxial compression tests. The primary orientation is 337°-348°T, and a secondary alignment from 045°-060°T. This mechanical anisotropy is correlated with the fabric of the rock. The primary fracture orientation is aligned with the maximum residual strain direction in the bedding...
Proceedings Papers

Paper presented at the 19th U.S. Symposium on Rock Mechanics (USRMS), May 1–3, 1978
Paper Number: ARMA-78-0406
... orientation, crystallographic orientation, grain dimensional orientation, and residual strain. Thin sections were cut parallel and perpendicular to the bedding plane and examined microscopically. In some cases sections were cut from two depths within the same well to determine vertical variability. The only...
Proceedings Papers

Paper presented at the 19th U.S. Symposium on Rock Mechanics (USRMS), May 1–3, 1978
Paper Number: ARMA-78-0502
... nearest-neighboring grains. That is, upon heating the residual strains are not relaxed (as they might be had their origin been related to the natural thermal history of the rock), but rather they are locally augmented until the elastic limit is reached and intragranular tensile fractures occur...
Proceedings Papers

Paper presented at the The 14th U.S. Symposium on Rock Mechanics (USRMS), June 11–14, 1972
Paper Number: ARMA-72-0001
... are discussed as well as difficulties associated with these methods when measurements are made in the presence of residual strains. Qualitative numerical models of residual stresses in rocks are discussed and results for a simple case are presented. Anticipated future work on residual stress phenomena...
Proceedings Papers

Paper presented at the The 10th U.S. Symposium on Rock Mechanics (USRMS), May 20–22, 1968
Paper Number: ARMA-68-0573
... to the weight per unit area of the overburden. In fact, vertical dilatational strains associated with stresses of more than 100 times the present overburden pressure have been measured by strain-relief methods on outcrops 1,2 . The notion of residual strain (stress) or latent stress 3 seems unassailable...

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