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  1. Home
  2. Indian Institute of Technology Madras
  3. Publication8
  4. Seismic ground motion in micropolar elastic half-space
 
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Seismic ground motion in micropolar elastic half-space

Date Issued
06-05-2013
Author(s)
Gade, Maheshreddy
S T G Raghukanth 
Indian Institute of Technology, Madras
DOI
10.1016/j.apm.2015.03.006
Abstract
In this article, analytic expressions for the frequency wave number spectra are derived for the displacement and rotational components at the ground surface of a micropolar elastic half-space. The ground motion is caused by buried sources described in terms of unit impulsive force and micro-moments. Closed-form analytic expressions for both plane strain and anti-plane strain conditions are established. In the sequel, Green's functions for reduced micro polar half-space where the couple stresses are zero and the stress tensor is nonsymmetric are also presented. Numerical results are presented for anti-plane strain case. The derived expressions can be used to simulate rotational and displacement components of ground motion during earthquakes.
Volume
39
Subjects
  • Micro-rotations

  • Reduced micro polar c...

  • Strong ground motion

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