Imperial College London

ProfessorZahraSharif Khodaei

Faculty of EngineeringDepartment of Aeronautics

Professor in AerospaceStructural Durability&HealthMonitoring
 
 
 
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Contact

 

+44 (0)20 7594 5116z.sharif-khodaei

 
 
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Location

 

329City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Sharif:2020:1361-665X/aba6ce,
author = {Sharif, Khodaei Z and Li, J and Aliabadi, MH},
doi = {1361-665X/aba6ce},
journal = {Smart Materials and Structures},
pages = {1--19},
title = {Boundary element modelling of ultrasonic Lamb waves for structural health monitoring},
url = {http://dx.doi.org/10.1088/1361-665X/aba6ce},
volume = {29},
year = {2020}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - In this paper, a novel boundary element plate formulation is proposed to model ultrasonic Lamb waves in both pristine and cracked plates for structural health monitoring (SHM) applications. Lamb waves are generated and sensed by piezoelectric discs. An equivalent pin-force model is newly proposed to represent the actuation effect of piezoelectric discs, which is more accurate than the classical pin-force model. The boundary element formulation is presented in the Laplace-transform domain based on plate theories, which allows three-dimensional analysis of Lamb wave behaviours, such as propagation and interaction with cracks, in thin-walled structures. A damage detection algorithm is used for crack localization alongside the BEM-simulated data. The BEM solutions show excellent agreement with both 3D finite element simulation and experimental results.
AU - Sharif,Khodaei Z
AU - Li,J
AU - Aliabadi,MH
DO - 1361-665X/aba6ce
EP - 19
PY - 2020///
SN - 0964-1726
SP - 1
TI - Boundary element modelling of ultrasonic Lamb waves for structural health monitoring
T2 - Smart Materials and Structures
UR - http://dx.doi.org/10.1088/1361-665X/aba6ce
UR - https://iopscience.iop.org/article/10.1088/1361-665X/aba6ce
UR - http://hdl.handle.net/10044/1/81221
VL - 29
ER -