| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Kappatos, Vassilis
Centre for Research and Technology Hellas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2017An ultrasonic guided wave approach for the inspection of overhead transmission line cablescitations
- 2017An investigation of shape memory alloys as actuating elements in aerospace morphing applicationscitations
- 2017Theoretical assessment of different ultrasonic configurations for defects detection in composite componentscitations
- 2016An experimental investigation of Electromagnetic Acoustic Transducers applied to high temperature plates for potential use in solar thermal industry
- 2016Inspection and Structural Health Monitoring techniques for Concentrated Solar Power plantscitations
- 2015Developing a Novel Ice Protection System for Wind Turbine Blades Using Vibrations of Both Short and Long Wavelengthscitations
- 2014Development of an ultrasonic NDT system for automated in-situ inspection of wind turbine blades
- 2014Airfoil morphing based on SMA actuation technologycitations
- 2014Enable the powder metallurgy process to expand to new markets with more reliable parts and lower manufacturing costs through the inspection of green parts
- 2014Development of an automated digital radiography system for the non-destructive inspection of green powder metallurgy parts
- 2013PM parts fast in-line x-ray digital radiography
- 2013Tensile mechanical properties prediction of reinforcing B500C steel bars in coastal structures
- 2012Structural health monitoring of ship and other offshore structures using acoustic emission testing
- 2012Preliminary NDT investigation of sintered Powder Metallurgy parts by high-resolution TDI based X-ray digital radiography
- 2012Development of a digital radiographic inspection technique for production friendly quality assessment of powder metallurgy parts
- 2010Assessment of the effect of existing corrosion on the tensile behaviour of magnesium alloy AZ31 using neural networkscitations
Places of action
| Organizations | Location | People |
|---|
article
An ultrasonic guided wave approach for the inspection of overhead transmission line cables
Abstract
Inspection of overhead transmission line cables is performed using various non-destructive testing techniques, such as visual, temperature, and eddy current-based inspection; yet each of these techniques have their respective shortcomings and safety concerns. The use of ultrasonic guided waves as a non-destructive testing technique is well established for simple geometries such as plates, pipes, and rods. However, its application for multi-wire cables is still in development. In this study, ultrasonic guided waves excited by a shear mode transducer collar are utilised as a defect detection technique for untensioned aluminium conductor steel reinforced cable specimens. The identification and analysis of wave propagation for a broad range of frequencies is performed using a laser scanning vibrometer, and the effect of defect size on wave propagation is studied. Signal processing algorithms, such as wavelet denoising and time scaling, are then deployed for inspection quality enhancement and analysis under noisy conditions. Results yield an extended range of defect detection coverage in pulse echo configuration; with successful detection of defects that correspond to a 4.5% reduction in the cable's cross sectional area; and up to 24% improvement of signal-to-noise ratio.