Please use this identifier to cite or link to this item: https://doi.org/10.1006/jsvi.2000.2966
Title: Quadratic layer element for analyzing stress waves in FGMS and its application in material characterization
Authors: Han, X. 
Liu, G.R. 
Lam, K.Y. 
Ohyoshi, T.
Issue Date: 14-Sep-2000
Source: Han, X., Liu, G.R., Lam, K.Y., Ohyoshi, T. (2000-09-14). Quadratic layer element for analyzing stress waves in FGMS and its application in material characterization. Journal of Sound and Vibration 236 (2) : 307-321. ScholarBank@NUS Repository. https://doi.org/10.1006/jsvi.2000.2966
Abstract: A novel method is presented for investigating elastic waves in functionally graded material (FGM) plates excited by plane pressure waves. The FGM plate is first divided into quadratic layer elements (QLEs). A general solution for the equation of motion governing the QLE has been derived. The general solution is then used together with the boundary and continuity conditions to obtain the displacement and stress in the frequency domain for an arbitrary FGM plate. The response of the plate to an incident pressure wave is obtained using the Fourier transform techniques. Results obtained by the present method are compared with an existing method using homogeneous layer elements. Numerical examples are presented to investigate stress waves in FGM plates. The relationship between the surface displacement response and the material property of quadratic FGM plates has been analytically obtained for the material characterization. A computational inverse technique is also presented for characterizing material property of an arbitrary FGM plate from the surface displacement response data, using present QLE method as forward solver and genetic algorithm as the inverse operator. This technique is utilized to reconstruct the material property of an actual SiC-C FGM.
Source Title: Journal of Sound and Vibration
URI: http://scholarbank.nus.edu.sg/handle/10635/58652
ISSN: 0022460X
DOI: 10.1006/jsvi.2000.2966
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

74
checked on Dec 6, 2017

WEB OF SCIENCETM
Citations

67
checked on Nov 17, 2017

Page view(s)

42
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


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