Fast 3D model dedicated to thermographic inspections of planar composite structures

Almpion Ratsakou (1) , Christophe Reboud (1) , Anastassios Skarlatos (1) , Dominique Lesselier (2)

1 LSME (CEA, LIST) - Laboratoire de Simulation et de Modélisation Électromagnétique (CEA, LIST)
2 L2S - Laboratoire des signaux et systèmes

Thermographic inspection is a popular nondestructive testing (NDT) technique that provides direct images of temperature distribution over large areas at the surfaces of inspected objects. A major application of this method is the inspection of composite materials during manufacturing or in service, in view of detecting delaminations possibly appearing between the layers of the structure [1]. Simulation of these inspections proves useful to complement experimental studies, evaluate the performance of a given setup in terms of detection and support model based algorithms aiming at characterizing flaws. This communication presents a 3D semi-analytical model to address the special case of planar stratified media.

Mots clés: non-destructive testing; thermography; composite materials; inspection; model-based

Domaines: Electromagnétisme; Traitement du signal et de l'image [eess.SP]; Physique mathématique [math-ph]

Almpion Ratsakou, Christophe Reboud, Anastassios Skarlatos, Dominique Lesselier. Fast 3D model dedicated to thermographic inspections of planar composite structures. The 24th International Workshop on Electromagnetic Nondestructive Evaluation, Sep 2019, Chengdu, China. ⟨hal-02177508⟩