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Keywords: centroid
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Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-501
... Oil & Gas centroid specimen typical hard rock interface ABSTRACT: The bonded-particle model (BPM) consisting of parallel-bonded disks or spheres suffers from the limitation that if one matches the unconfined-compressive strength ( ) of a typical hard rock, then the direct-tension...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-631
.... Significantly, there can be no description of shape or an emulation of the actual mechanism of rock-slope impact, including induced rotation and the effect of size. Artificial Intelligence centroid mass model outgoing velocity major axis trajectory apparent coefficient Derivation ellipse normal...
Proceedings Papers

Paper presented at the 44th U.S. Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium, June 27–30, 2010
Paper Number: ARMA-10-169
... are normalized to the far-field vertical stress, the solution can be reduced to the following form ( pRkRr = (1) where is any component of the stress tensor normalized to the far-field vertical stress ver , r is the radial distance from the sphere centroid, k is the far-field stress ratio between horizontal...
Proceedings Papers

Paper presented at the Vail Rocks 1999, The 37th U.S. Symposium on Rock Mechanics (USRMS), June 7–9, 1999
Paper Number: ARMA-99-0567
... fractured rock mass. The work presented in the paper is part of a broader study on applications of numerical limit analysis to geotechnical problems ( Araujo et al, 1996; Araujo et al, 1997) relation centroid Cosserat continuum rock mass Upstream Oil & Gas criterion limit analysis...

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