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Evolution of nonlinear seismic waves in microstructured earth crust

Han Hai-Ying Naranmandula Shuang Shan

Evolution of nonlinear seismic waves in microstructured earth crust

Han Hai-Ying, Naranmandula, Shuang Shan
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  • Abstract views:  1866
  • PDF Downloads:  429
  • Cited By: 0
Publishing process
  • Received Date:  19 March 2011
  • Accepted Date:  20 June 2011
  • Published Online:  05 March 2012

Evolution of nonlinear seismic waves in microstructured earth crust

  • 1. College of Physics and Electronics, Inner Mongolia University for Nationalities, Tongliao 028043, China
Fund Project:  Project supported by the National Natural Science Foundation of China (Grant Nos. 10862003, 40564001), and the Innovative Research Team Building Programs of Inner Mongolia University for Nationalities of China.

Abstract: Study of propagation and evolution of nonlinear seismic wave in earth crust is of important practical significance. In this paper, evolutions of nonlinear seismic longitudinal wave and transverse wave in microstructured earth crust are simulated detailedly by using the finite difference method. The results indicate that nonlinear seismic longitudinal wave and transverse wave in microstructured earth crust may evolve into one solitary wave or two solitary waves or solitary wave train, or disappearance. The initial amplitude of seismic wave, dispersion coefficient and body force factor significantly influence the evolution process. Our results reveal the evolution law of nonlinear seismic wave in a microstructured earth crust, which will help to explain some special seismic wave phenomena in theory.

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