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Simulation of time reversibility of Lamb wave in symmetric composite laminate

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Title Simulation of time reversibility of Lamb wave in symmetric composite laminate
 
Creator KULKARNI, G
MITRA, M
 
Subject Lamb wave
Time reversibility
Composites
Wavelets
Spectral finite element
SPECTRAL ELEMENT METHOD
PROPAGATION ANALYSIS
DAMAGE DETECTION
PLATE STRUCTURES
FINITE-ELEMENT
REVERSAL
IDENTIFICATION
DELAMINATION
GENERATION
CRACK
 
Description In this paper, a computationally efficient scheme to simulate Lamb wave propagation in symmetric laminated composite is presented and used to study time reversibility of Lamb wave. The technique proposed is a modified version of the wavelet spectral finite element (WSFE) which has been earlier developed for one-and two-dimensional wave propagation. The method follows a finite element procedure in the transformed frequency-wavenumber domain. The transformations are done using Daubechies scaling function approximation in time and one spatial dimension. Here, the modified WSFE method is used to simulate time domain Lamb wave response in doubly bounded, symmetric composite laminates. The results have been validated by comparing the wave velocities derived from these simulations with those obtained from experiments. The technique has also been used to emphasize and analyze the time reversibility phenomenon of Lamb wave. Finally, the constraint of the simulation in terms of wrap-around problem is explained with numerical examples. (C) 2011 Elsevier Ltd. All rights reserved.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2014-10-16T05:58:08Z
2014-10-16T05:58:08Z
2012
 
Type Article
 
Identifier INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 54(1)277-286
http://dx.doi.org/10.1016/j.ijmecsci.2011.11.008
http://dspace.library.iitb.ac.in/jspui/handle/100/15396
 
Language en