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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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Drinkwater, Bw
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2021Exploring high-frequency eddy-current testing for sub-aperture defect characterisation using parametric-manifold mappingcitations
- 2018Characterisation of carbon fibre-reinforced polymer composites through radon-transform analysis of complex eddy-current datacitations
- 2017Three-dimensional ultrasonic trapping of micro-particles in water with a simple and compact two-element transducercitations
- 2016Ultrasonic Array Imaging Through an Anisotropic Austenitic Steel Weld Using an Efficient Ray-tracing Algorithmcitations
- 2014Accurate modelling of anisotropic effects in austenitic stainless steel welds
- 2013Detection of Fibre Waviness Using Ultrasonic Array Scattering Datacitations
- 2013Imaging composite material using ultrasonic arrayscitations
- 2013Effective dynamic moduli and density of fiber-reinforced composites
- 2012Monte Carlo inversion of ultrasonic array data to map anisotropic weld propertiescitations
- 2012Autofocus imaging
- 2012Imaging composite material using ultrasonic arrayscitations
- 2012Effective dynamic constitutive parameters of acoustic metamaterials with random microstructurecitations
- 2010Ultrasonic condition monitoring using thin-film piezoelectric sensorscitations
- 2010Inspection of single crystal aerospace components with ultrasonic arrayscitations
- 2009Measurement of the ultrasonic nonlinearity of kissing bonds in adhesive jointscitations
- 2008Acoustic emission from pitting corrosion in stressed stainless steel platecitations
- 2006Oil film measurement in polytetrafluoroethylene-faced thrust pad bearings for hydrogenerator applicationscitations
- 2006Guided Wave Acoustic Emission from Fatigue Crack Growth in Aluminium Plate
- 2006Monitoring of lubricant film failure in a ball bearing using ultrasoundcitations
- 2006Intra-laminar cracking in CFRP laminatescitations
- 2006Global crack detection for aircraft monitoring using bispectral analysis
- 2006Intra-laminar cracking in CFRP laminates: observations and modelling ; Intra-laminar cracking in CFRP laminates:Observations and modellingcitations
- 2004The on-line measurement of lubricant film thickness for condition monitoringcitations
- 2003An ultrasonic wheel-array sensor and its application to aerospace structurescitations
- 2003The measurement of lubricant-film thickness using ultrasoundcitations
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article
Ultrasonic Array Imaging Through an Anisotropic Austenitic Steel Weld Using an Efficient Ray-tracing Algorithm
Abstract
Ultrasonic inspection of austenitic welds is challenging due to their highly anisotropic and heterogeneous microstructure. The weld anisotropy causes a steering of the ultrasonic beam leading to a number of adverse effects upon ultrasonic array imagery, including defect mislocation and aberration of the defect response. A semi-analytical model to simulate degraded ultrasonic images due to propagation through an anisotropic austenitic weld is developed. Ray-tracing is performed using the A⁎ path-finding algorithm and integrated into a semi-analytical beam-simulation and imaging routine to observe the impact of weld anisotropy on ultrasonic imaging. Representative anisotropy weld-maps are supplied by the MINA model of the welding process. A number of parametric studies are considered, including the magnitude and behaviour of defect mislocation and amplitude as the position of a fusion-face defect and the anisotropy distribution of a weld is varied, respectively. Furthermore, the use of the model to efficiently simulate and evaluate ultrasonic image degradation due to anisotropic austenitic welds during an inspection development process is discussed.