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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Gachagan, Anthony
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (76/76 displayed)
- 2023Flexible and automated robotic multi-pass arc welding
- 2023Driving towards flexible and automated robotic multi-pass arc welding
- 2022Autonomous and targeted eddy current inspection from UT feature guided wave screening of resistance seam welds
- 2022Mechanical stress measurement using phased array ultrasonic system
- 2022Investigating ultrasound wave propagation through the coupling medium and non-flat surface of wire + arc additive manufactured components inspected by a PAUT roller-probe
- 2022Automated multi-modal in-process non-destructive evaluation of wire + arc additive manufacturing
- 2022Targeted eddy current inspection based on ultrasonic feature guided wave screening of resistance seam welds
- 2022Automated real time eddy current array inspection of nuclear assetscitations
- 2021Feed forward control of welding process parameters through on-line ultrasonic thickness measurementcitations
- 2021Inspection of components with obscured accessibility
- 2021A cost-function driven adaptive welding framework for multi-pass robotic weldingcitations
- 2021Non-contact in-process ultrasonic screening of thin fusion welded jointscitations
- 2020In-process calibration of a non-destructive testing system used for in-process inspection of multi-pass weldingcitations
- 2020Design of 2D sparse array transducers for anomaly detection in medical phantomscitations
- 2020Effective Grain Orientation Mapping of Complex and Locally Anisotropic Media for Improved Imaging in Ultrasonic Non-Destructive Testingcitations
- 2020Laser-assisted surface adaptive ultrasound (SAUL) inspection of samples with complex surface profiles using a phased array roller-probe
- 2019Ultrasonic phased array inspection of wire + arc additive manufacture samples using conventional and total focusing method imaging approachescitations
- 2019Electromagnetic acoustic transducers for guided-wave based robotic inspection
- 2019Ultrasonic phased array inspection of wire plus arc additive manufacture samples using conventional and total focusing method imaging approachescitations
- 2019Ultrasonic phased array inspection of a Wire + Arc Additive Manufactured (WAAM) sample with intentionally embedded defectscitations
- 2019Towards guided wave robotic NDT inspection
- 2018Linear ultrasonic array design using cantor set fractal geometrycitations
- 2018Broadband 1-3 piezoelectric composite transducer design using Sierpinski Gasket fractal geometrycitations
- 2018Broadband piezocrystal transducer array for non-destructive evaluation imaging applicationscitations
- 2018Ultrasonic phased array inspection of wire plus arc additive manufacture (WAAM) samples using conventional and total focusing method (TFM) imaging approaches
- 2017A nonlinear elasticity approach to modelling the collapse of a shelled microbubblecitations
- 2017Assessment of corrosion under insulation and engineered temporary wraps using pulsed eddy-current techniques
- 2017Linear ultrasonic array incorporating a Cantor Set fractal element configuration
- 2017An expert-systems approach to automatically determining flaw depth within candu pressure tubes
- 2016Improving the operational bandwidth of a 1-3 piezoelectric composite transducer using Sierpinski Gasket fractal geometry
- 2015Dynamical model of an oscillating shelled microbubble
- 2015System modeling and device development for passive acoustic monitoring of a particulate-liquid processcitations
- 2015Accurate finite element model of equiaxed-grain engineering material for ultrasonic inspection
- 2015A model-based approach to crack sizing with ultrasonic arrayscitations
- 2014Automatic ultrasonic robotic arraycitations
- 2014Inspection design using 2D phased array, TFM and cueMAP software
- 2014Application of conformal map theory for design of 2-D ultrasonic array structure for ndt imaging applicationcitations
- 2013Robust frequency diversity based algorithm for clutter noise reduction of ultrasonic signals using multiple sub-spectrum phase coherencecitations
- 20132D ultrasonic array transducer design to maximise coverage in composite material structures
- 2013A design methodology for 2D sparse NDE arrays using an efficient implementation of refracted - ray TFMcitations
- 2012High intensity focused ultrasound array transducers using 2-2 stacked piezoelectric composite appropriate for sonochemisrty applicationcitations
- 2012Robust defect detection in ultrasonic nondestructive evaluation (NDE) of difficult materialscitations
- 2012Ultrasonic imaging of electrofusion welded polythene pipes employed in utilities industry
- 2010An annular array with fiber composite microstructure for far field NDT imaging applicationscitations
- 2010A comparison of methods used to predict the vibrational energy required for a reliable thermosonic inspection
- 2010Hexagonal array structure for 2D NDE applicationscitations
- 2010Monitoring crack propagation in turbine blades caused by thermosonic inspection
- 2010A wideband annular piezoelectric composite transducer configuration with a graded active layer profilecitations
- 2009Numerical optimisation of piezocomposite material properties using 3D finite - element modeling
- 2009Theoretical analysis of ultrasonic vibration spectra from multiple particle-plate impactscitations
- 2009Research applications and opportunities in power ultrasonicscitations
- 2009Estimating particle concentration using passive ultrasonic measurement of impact vibrationscitations
- 2009Development of an efficient conformable array structure
- 2009Flexible ultrasonic transducers incorporating piezoelectric fibrescitations
- 2008Particle sizing using passive ultrasonic measurement of particle-wall impact vibrationscitations
- 2007Simulation of the influence of hydrophones used for the characterization of pressure field distribution in low frequency, high power ultrasonic reactor vesselscitations
- 2007Exploring the advantages of a random 1-3 connectivity piezocomposites structure incorporating piezoelectric fibres as the active elementcitations
- 2007Investigating the influence of the constituent materials on the performance of periodic piezoelectric composite arrayscitations
- 2007A wideband ultrasonic test system for characterisation of particulate systems in the linear and non-linear regimescitations
- 2007Enhanced flexibility and performance from piezocomposite 2D array with a dual-polymer phase improved structurecitations
- 2006Comparison of the performance of pmn-pt single-crystal and ceramic composite arrays for NDE applicationscitations
- 2006Comparison of the frequency and physical nature of the lowest order parasitic mode in single crystal and ceramic 2-2 and 1-3 piezoelectric composite transducerscitations
- 2005A flexible piezoelectric transducer design for efficient generation and reception of ultrasonic lamb wavescitations
- 2005Monitoring of a heterogeneous reaction by acoustic emission
- 2004Minimisation of mechanical cross talk in periodic piezoelectric composite arrayscitations
- 2004A new low frequency piezoelectric composite transducercitations
- 2004A high power ultrasonic array based test cellcitations
- 2004An analysis of ultrasonic wave propagation in metallic pipe structures using finite element modelling techniques
- 2003Embedded ultrasonic transducer design and wireless communication for intelligent monitoring of structures
- 2003Comparison of mechanical cross talk in single crystal and ceramic periodic piezoelectric composite arrayscitations
- 2003Impact on the mechanical integrity of carbon fibre reinforced composite plates incorporating embedded piezoceramic transducers
- 2002Lamb wave suppression in periodic 1-3 piezoelectric composite transducerscitations
- 2002Development of a manual air-coupled ultrasonic inspection instrument for use on aeronautical structures under in-service conditions
- 2001The structural integrity of composite plates with embedded piezoelectric transducers for smart structural monitoring
- 2000Embedded ultrasonic sensors for monitoring structural integrity
- 2000Comparison of different piezoelectric materials for the design of embedded transducers for structural health monitoring applicationscitations
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article
Automated real time eddy current array inspection of nuclear assets
Abstract
Inspection of components with surface discontinuities is an area that volumetric Non-Destructive Testing (NDT) methods, such as ultrasonic and radiographic, struggle in detection and characterisation. This coupled with the industrial desire to detect surface-breaking defects of components at the point of manufacture and/or maintenance, to increase design lifetime and further embed sustainability in their business models, is driving the increased adoption of Eddy Current Testing (ECT). Moreover, as businesses move toward Industry 4.0, demand for robotic delivery of NDT has grown. In this work, the authors present the novel implementation and use of a flexible robotic cell to deliver an eddy current array to inspect stress corrosion cracking on a nuclear canister made from 1.4404 stainless steel. Three 180-degree scans at different heights on one side of the canister were performed, and the acquired impedance data were vertically stitched together to show the full extent of the cracking. Axial and transversal datasets, corresponding to the transmit/receive coil configurations of the array elements, were simultaneously acquired at transmission frequencies 250, 300, 400, and 450 kHz and allowed for the generation of several impedance C-scan images. The variation in the lift-off of the eddy current array was innovatively minimised through the use of a force–torque sensor, a padded flexible ECT array and a PI control system. Through the use of bespoke software, the impedance data were logged in real-time (≤7 ms), displayed to the user, saved to a binary file, and flexibly post-processed via phase-rotation and mixing of the impedance data of different frequency and coil configuration channels. Phase rotation alone demonstrated an average increase in Signal to Noise Ratio (SNR) of 4.53 decibels across all datasets acquired, while a selective sum and average mixing technique was shown to increase the SNR by an average of 1.19 decibels. The results show how robotic delivery of eddy current arrays, and innovative post-processing, can allow for repeatable and flexible surface inspection, suitable for the challenges faced in many quality-focused industries.