Quasi-static analysis of elastic behavior for some systems having higher fracture densities.

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Elastic behavior of geomechanical systems with interacting (but not intersecting) fractures is treated using generalizations of the Backus and the Schoenberg-Muir methods for analyzing layered systems whose layers are intrinsically anisotropic due to locally aligned fractures. By permitting the axis of symmetry of the locally anisotropic compliance matrix for individual layers to differ from that of the layering direction, we derive analytical formulas for interacting fractured regions with arbitrary orientations to each other. This procedure provides a systematic tool for studying how contiguous, but not yet intersecting, fractured domains interact, and provides a direct (though approximate) means of predicting when ... continued below

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Berryman, J.G. & Aydin, A. October 15, 2009.

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Elastic behavior of geomechanical systems with interacting (but not intersecting) fractures is treated using generalizations of the Backus and the Schoenberg-Muir methods for analyzing layered systems whose layers are intrinsically anisotropic due to locally aligned fractures. By permitting the axis of symmetry of the locally anisotropic compliance matrix for individual layers to differ from that of the layering direction, we derive analytical formulas for interacting fractured regions with arbitrary orientations to each other. This procedure provides a systematic tool for studying how contiguous, but not yet intersecting, fractured domains interact, and provides a direct (though approximate) means of predicting when and how such interactions lead to more dramatic weakening effects and ultimately to failure of these complicated systems. The method permits decomposition of the system elastic behavior into specific eigenmodes that can all be analyzed, and provides a better understanding about which of these specific modes are expected to be most important to the evolving failure process.

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  • Journal Name: International Journal for Numerical and Analytical Methods in Geomechanics; Related Information: Journal Publication Date: 2009

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  • Report No.: LBNL-3016E
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.1002/nag.874 | External Link
  • Office of Scientific & Technical Information Report Number: 982837
  • Archival Resource Key: ark:/67531/metadc1013379

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  • October 15, 2009

Added to The UNT Digital Library

  • Oct. 14, 2017, 8:36 a.m.

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  • Oct. 18, 2017, 10:37 a.m.

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Berryman, J.G. & Aydin, A. Quasi-static analysis of elastic behavior for some systems having higher fracture densities., article, October 15, 2009; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc1013379/: accessed June 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.