Technical Diagnostics and Non-Destructive Testing, 2026, №01

2026 №01 (03)

DOI of Article 10.37434/tdnk2026.01.04

2026 №01 (05)

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"Tekhnichna Diahnostyka ta Neruinivnyi Kontrol" (Technical Diagnostics and Non-Destructive Testing) #1, 2026, pp. 32-46

Principles and technologies of thermal control and diagnostics of critical structures and facilities (Review)

V.Iu. Glukhovskiy

E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: glukhovskyy@gmail.com

The paper presents a complex analysis of fundamental principles and modern technologies of thermal control and thermographic diagnostics of critical facilities and structures. Special attention was paid to physical relationships between thermal responses, thermomechanical processes and damage mechanics at different scale levels. The passive, active and hybrid thermographic approaches were systematically considered, and their methodological capabilities, technical limitations and applicability for different material classes were analyzed. Special attention was given to current achievements in the sphere of digital processing of signals, numerical modeling and machine learning methods with a focus on physically interpreted and hybrid approaches. Integration of thermography into the systems of monitoring the state of the structures and digital twins is defined as a key direction of transition to quantitative evaluation of structural integrity and residual service life. Urgent problems were determined, which are related to inverse heat conduction problems, influence of environmental factors and quantitative assessment of uncertainty, and promising directions of further studies were outlined, aimed at transition from qualitative diagnostics to prognostic physically substantiated monitoring of critical structures. Ref. 61, Tabl. 3, Fig. 14.
Keywords: infrared thermography, thermal nondestructive testing, technical condition monitoring, limit state, reliability, thermal anomaly

Received: 04.02.2026
Received in revised form: 09.03.2026
Accepted: 10.04.2026
Posted online: 23.04.2026

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Suggested Citation

V.Iu. Glukhovskiy (2026) Principles and technologies of thermal control and diagnostics of critical structures and facilities (Review). Technical Diagnostics and Non-Destructive Testing, 01, 32-46. https://doi.org/10.37434/tdnk2026.01.04

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