| People | Locations | Statistics |
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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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Lesselier, Dominique
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Identification and characterization of damaged fiber-reinforced laminates in a Bayesian frameworkcitations
- 2024GPR for Tree Roots Reconstruction under Heterogeneous Soil Conditions
- 2023Identification and characterization of damaged fiber-reinforced laminates in a Bayesian framework
- 2022Data fusion and non-destructive testing of damaged fiber-reinforced laminates
- 2021Ultrasonic array imaging of nuclear austenitic V-shape welds with Inhomogeneous and unknown anisotropic propertiescitations
- 2021A wavelet-based contrast source inversion methodcitations
- 2019Adaptive TFM imaging in anisotropic steels using optimization algorithms coupled to a surrogate model
- 2019Fast 3D model dedicated to thermographic inspections of planar composite structures
- 2016On recent advances and issues ahead in modeling and electromagnetic imaging of perturbed composite laminates
- 2016A new optimization method for solving electromagnetic inverse scattering problems
- 2015MUSIC imaging method for low-high frequency inspection of composite multi-layerscitations
- 2015Subspace-based optimization method for reconstructing 3-D scatterers in anisotropic laminates
- 2015Impedance of an induction coil accounting for the end-effect in eddy current inspection of steam generator tubes
- 2015Electromagnetic MUSIC imaging and 3-D retrieval of defects in anisotropic, multi-layered composite materials
- 2014MUSIC imaging method for low-high frequency inspection of composite multi-layerscitations
- 2014Fast calculation of electromagnetic scattering in anisotropic multilayers and its inverse problem
- 2014Low-high frequency inspection of composite multi-layers and MUSIC-type electromagnetic imaging
- 2012Eddy current modeling of narrow cracks in planar-layered metal structurescitations
- 2008New discretisation scheme based on splines for volume integral method: Application to eddy current testing of tubescitations
- 2008Hybridization of volumetric and surface models for the computation of the T/R EC probe response due to a thin opening flawcitations
- 2008Multi-static response of spherical scatterers and the back-propagation of singular fieldscitations
- 2007Volumetric and surface flaw models for the computation of the EC T/R probe signal due to a thin opening flaw
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document
Adaptive TFM imaging in anisotropic steels using optimization algorithms coupled to a surrogate model
Abstract
An optimization method is studied to enhance the reliability of TFM (Total Focusing Method) images in anisotropic nuclear materials. The method is able to adapt to a given anisotropic structure (weld, cladded steel) when the parameters governing the wave propagation are uncertain. The optimization scheme combines a surrogate model to bypass the extensive computation times of the propagation forward model, and a gradient descent algorithm to minimize a multivariate cost function. The gradient-based local optimization is compared with a global optimization tool, the Particle Swarm algorithm. Finally, the parameters (stiffness constant, grain orientation, cladding thickness…) corresponding to the optimal TFM image are compared with those measured by other characterization techniques.