Time-Dependent Displacement and Stress Fields Due to Shear and Tensile Faults in a Transversely Isotropic Viscoelastic Half-Space

Details

• Personal Author:
  Molavi Tabrizi A ; Pan E
• Description:
  Viscoelastic behaviour of materials in nature is observed in post-event deformations due to seismic or volcanic activities. In this paper, by adopting the correspondence principle, we propose an inelastic model to predict first the Laplace-domain response of a transversely isotropic viscoelastic half-space due to a shear or tensile fault of polygonal shape. The displacement and stress fields in the time domain are then obtained using an efficient and accurate algorithm for the inverse Laplace transform. Numerical examples are presented to validate the proposed solution and to show the viscoelastic displacement and stress fields due to a strike-slip, dip-slip and tensile fault of rectangular shape. The obtained results indicate that both viscoelasticity and transverse isotropy play significant roles in the viscoelastic response of the half-space due to faults, which could be used as benchmarks for the future numerical analysis of realistic post-seismic or volcanic event. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Keywords:
  Author Keywords: Geomechanics Elasticity And Anelasticity Elastic Properties Fault Zone Rheology Fractures And Faults Fracture Zones Geologic Formations Geologic Models Models Tensile Strength Volcanoes

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• ISSN:
  0956-540X
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5 ; OSHA Region 6 ; Texas
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  163-174
• Volume:
  202
• Issue:
  1
• NIOSHTIC Number:
  nn:20053112
• Citation:
  Geophys J Int 2015 Jul; 202(1):163-174
• Contact Point Address:
  Ernian Pan, Department of Civil Engineering, University of Akron, Akron, OH 44325, USA
• Email:
  pan2@uakron.edu
• Federal Fiscal Year:
  2015
• NORA Priority Area:
  Mining
• Performing Organization:
  University of Texas at Arlington
• Peer Reviewed:
  True
• Start Date:
  20121122
• Source Full Name:
  Geophysical Journal International
• End Date:
  20150831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:1d6c7b332b9eb92ce0905564b895b1757b2b8694890a6a2afa3da290bd8f3d2b1468212f1c495dac34ca66514f900de880494d8d382eaf2ad2debb1e7b9e374e
• Download URL:
  https://stacks.cdc.gov/view/cdc/215940/cdc_215940_DS1.pdf
• File Type:
  [PDF - 748.16 KB ]