Imperial College London
Portrait Picture

M H Ferri Aliabadi

Faculty of Engineering, Department of Aeronautics

Chair in Aerostructures
 
 
 
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Contact

 

+44 (0)20 7594 5077m.h.aliabadi

 
 
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Assistant

 

Miss Lisa Kelly +44 (0)20 7594 5056

 
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Location

 

CAGB323City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Li:2019:10.1016/j.ijmecsci.2019.02.045,
author = {Li, J and Khodaei, ZS and Aliabadi, MH},
doi = {10.1016/j.ijmecsci.2019.02.045},
journal = {International Journal of Mechanical Sciences},
pages = {235--247},
title = {Modelling of the high-frequency fundamental symmetric Lamb wave using a new boundary element formulation},
url = {http://dx.doi.org/10.1016/j.ijmecsci.2019.02.045},
volume = {155},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper presents a new boundary element formulation for modelling the fundamental symmetric Lamb wave (S0 mode) propagating in the high frequency range. At such high frequencies, the S0 mode reveals significant dispersive character. Conventional BEM formulations governed by the generalised plane stress theory fail to accurately represent the dispersive properties of the S0 mode and to handle out-of-plane loads because the effects of thickness-stretch are not considered. Therefore, a new BEM formulation is proposed based on the dynamic fundamental solutions which are derived for the first time for a higher-order plate theory (Kane–Mindlin) taking into account coupling between extensional motion and the first mode of thickness vibration. Only plate edges are required to be discretized using simple line elements in the proposed BEM formulation. Three benchmark examples are presented where the solutions from the new BEM formulation are shown to be in excellent agreement with analytical and three-dimensional finite element results. Furthermore, the advantage of the proposed formulation is demonstrated through comparisons with the BEM results based on the generalised plane stress theory.
AU  - Li,J
AU  - Khodaei,ZS
AU  - Aliabadi,MH
DO  - 10.1016/j.ijmecsci.2019.02.045
EP  - 247
PY  - 2019///
SN  - 0020-7403
SP  - 235
TI  - Modelling of the high-frequency fundamental symmetric Lamb wave using a new boundary element formulation
T2  - International Journal of Mechanical Sciences
UR  - http://dx.doi.org/10.1016/j.ijmecsci.2019.02.045
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000468721800020&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.sciencedirect.com/science/article/pii/S0020740318330091
UR  - http://hdl.handle.net/10044/1/73552
VL  - 155
ER  -
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