Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/10273
Title: Investigation on high-order harmonic generation of guided waves using local computation approaches: Theory and comparison with analytical modelling
Authors: Radecki, R
Leamy, MJ
Uhl, T
Staszewski, WJ
Su, Z 
Cheng, L 
Packo, P
Keywords: Cellular Automata
Guided elastic waves
LISA
Modelling
Nonlinear wavefield
Numerical simulations
Issue Date: 2014
Publisher: INRIA
Source: 7th European Workshop on Structural Health Monitoring, EWSHM 2014 - 2nd European Conference of the Prognostics and Health Management (PHM) Society, 2014, p. 575-582 How to cite?
Abstract: The paper presents numerical modelling approaches for computing wave propagation and high-order harmonic generation in nonlinear media. This approach is based on two local computational methods, i.e. the Local Interaction Simulation Approach and the Cellular Automata for Elastodynamics. Discretized numerical dispersion curves are calculated and used for the entire analysis. A quantitative study of velocity matching between the fundamental and high-order harmonic waves is performed. The influence of propagation distance on the magnitude of high-order harmonics is evaluated for various excitation frequencies. Numerical analyses show divergence from analytical models for dispersion curves, especially for high-order harmonics. These preliminary investigations demonstrate that the numerical modelling approaches applied can be used effectively for nonlinear wavefield analysis; however, numerical instead of analytical spectral characteristics should be considered.
Description: 7th European Workshop on Structural Health Monitoring, EWSHM 2014, 8-11 July 2014
URI: http://hdl.handle.net/10397/10273
Appears in Collections:Conference Paper

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

1
Last Week
0
Last month
Citations as of Feb 25, 2017

Page view(s)

31
Last Week
1
Last month
Checked on Aug 14, 2017

Google ScholarTM

Check



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.