Imperial College London
Portrait Picture

M H Ferri Aliabadi

Faculty of Engineering, Department of Aeronautics

Chair in Aerostructures
 
 
 
//

Contact

 

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

 
 
//

Assistant

 

Miss Lisa Kelly +44 (0)20 7594 5056

 
//

Location

 

CAGB323City and Guilds BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Feng:2020:10.3390/s20123410,
author = {Feng, T and Dimitrios, B and Aliabadi, MHF},
doi = {10.3390/s20123410},
journal = {Sensors},
title = {Active health monitoring of thick composite structures by embedded and surface-mounted piezo diagnostic layer},
url = {http://dx.doi.org/10.3390/s20123410},
volume = {20},
year = {2020}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - An effective approach for an embedded piezo diagnostic layer into thick composite material is presented. The effectiveness of the approach is assessed in comparison to the surface-mounted layer. The proposed manufacturing alleviates difficulties associated with trimming edges of composites when embedding wires. The Electro-Mechanical Impedance technique is used to access the integrity of the piezoelectric sensors bonding process. Comparisons of ultrasonic guided waves are made between embedded and surface-mounted diagnostic layers and their penetration through and across the thickness of the composites. Temperature influences with the range from −40 °C up to 80 °C on embedded and surface-mounted guided waves are investigated. An investigation is carried out into the relationship between amplitude and time-of-flight with temperature at different excitation frequencies. The temperature has significant but different effects on amplitude and phase-shift of guided waves for the embedded layer compared to the surface-mounted layer. A Laser Doppler Vibrometer is used to identify the blue tack and impact damage. Both embedded and surface-mounted layers are shown to be an effective means of generating detectable wave scatter from damage.
AU  - Feng,T
AU  - Dimitrios,B
AU  - Aliabadi,MHF
DO  - 10.3390/s20123410
PY  - 2020///
SN  - 1424-8220
TI  - Active health monitoring of thick composite structures by embedded and surface-mounted piezo diagnostic layer
T2  - Sensors
UR  - http://dx.doi.org/10.3390/s20123410
UR  - http://hdl.handle.net/10044/1/80996
VL  - 20
ER  -
Download