Vladimir P. Vavilov

TL;DR: In this article, the basics of pulsed thermal nondestructive testing (TNDT) including theoretical solutions, data processing algorithms and practical implementation are discussed along with 1D analytical and multi-dimensional numerical solutions.

TL;DR: In this article, a methodology based on the solution of the inverse heat transfer problem for the detection and evaluation of flaws in buildings is discussed, where the temperature varying in space and time is recorded by a thermographic equipment and each point belonging to the inspected area is analysed quantitatively.

TL;DR: In this article, the authors provide a concise review of composite NDT using TNDT in combination with other inspection techniques, providing an opportunity for data fusion, especially for composite materials.

TL;DR: In this article, the authors used ultrasonic-stimulated IR thermography for the inspection of cracks in heavy aluminum structures, where the most important defect detection parameters are the differential temperature signal and signal-to-noise ratio (SNR), which typically reach their maximums at shortly (under 1) after the beginning of the ultrasonic excitation.

TL;DR: In this paper, a robust inversion function is proposed and its stability against variations in tested material, heat pulse duration and observation time is analyzed using numerical modelling, having proved the validity of the inversion algorithm with an average accuracy of 17% for material loss ranging from 74 to 14%.