The Detection and Characterization of Defects in Metal/Non-metal Sandwich Structures by Thermal NDT, and a Comparison of Areal Heating and Scanned Linear Heating by Optical and Inductive Methods

• Published in: Journal of nondestructive evaluation Vol. 40; no. 2
• Main Authors: Chulkov, A. O., Tuschl, C., Nesteruk, D. A., Oswald-Tranta, B., Vavilov, V. P., Kuimova, M. V.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.06.2021; Springer Nature B.V
• Subjects: Adhesive bonding; Characterization and Evaluation of Materials; Classical Mechanics; Control; Defects; Dynamical Systems; Engineering; Heat; Induction heating; Inspection effectiveness; Insulation; Interlayers; Multilayers; Neural networks; Nondestructive testing; Sandwich structures; Signal reconstruction; Solid Mechanics; Space vehicles; Thermal insulation; Thermography; Vibration; Xenon; Infrared thermography; Defect characterization; Scanned linear heating; Thermal insulation; Neural network; Optical heating; Induction heating
• ISSN: 0195-9298; 1573-4862
• DOI: 10.1007/s10921-021-00772-y

It is common on space vehicles to have thermal insulation adhesively bonded to a metal structure. A typical defect in such structures is an interlayer disbond, which may occur either between the insulation and the metal substructure or between the layers of multilayer thermal insulation. One-sided t...