An Approach for Parameters Evaluation in Layered Structural Materials based on DFT Analysis of Ultrasonic Signals

Aleksandrs Sisojevs, Alexey Tatarinov, Mihails Kovalovs, Olga Krutikova, Anastasija Chaplinska

2022

Abstract

An adequate assessment of the condition of versatile structural materials of different origin, from hard biological tissues (cortical bone) to objects of engineering infrastructure facilities (concrete), may encounter difficulties due to their complex and multilayer structure. Traditional ultrasonic testing based on the measurement of single parameters do not allow separating the complex influences of acting factors. Thus, the diagnosis of osteoporosis is complicated by the adverse influence of the thickness of the layer of soft tissue covering bone, when assessing the porosity of the bone. In the evaluation of deterioration processes in concrete, it is important to discriminate the depth of the deteriorated surface layer of concrete and the degree of the material degradation in this layer. The evaluation approach implementing the methods of pattern recognition has been proposed. The initial data set comprised ultrasonic signals obtained at different frequencies in specimens with different values of the parametrs according to a planned grid of the parameters of ineterest. The signals were obtained by surface profiling of the specimens by a pair of emitting and receiving transducers. In this study, an approach to evaluate parameters of interest using pattern recognition methods applied to ultrasonic signals processed by the Digital Fourier Transform was verified. The estimation model was based on the statistical analysis of the magnitude of the spectrum of the original ultrasonic signals. Decision rules were created based on the testing of a number of specimens forming the training set and calculation of the statistical criteria. Comparative testing of examination specimens demonstrated the adequacy of the proposed method as a potentially universal approach for evaluation of different kind of objects.

Paper Citation

in Harvard Style

Sisojevs A., Tatarinov A., Kovalovs M., Krutikova O. and Chaplinska A. (2022). An Approach for Parameters Evaluation in Layered Structural Materials based on DFT Analysis of Ultrasonic Signals. In Proceedings of the 11th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM, ISBN 978-989-758-549-4, pages 307-314. DOI: 10.5220/0010878400003122

in Bibtex Style

@conference{icpram22,
author={Aleksandrs Sisojevs and Alexey Tatarinov and Mihails Kovalovs and Olga Krutikova and Anastasija Chaplinska},
title={An Approach for Parameters Evaluation in Layered Structural Materials based on DFT Analysis of Ultrasonic Signals},
booktitle={Proceedings of the 11th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,},
year={2022},
pages={307-314},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010878400003122},
isbn={978-989-758-549-4},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 11th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,
TI - An Approach for Parameters Evaluation in Layered Structural Materials based on DFT Analysis of Ultrasonic Signals
SN - 978-989-758-549-4
AU - Sisojevs A.
AU - Tatarinov A.
AU - Kovalovs M.
AU - Krutikova O.
AU - Chaplinska A.
PY - 2022
SP - 307
EP - 314
DO - 10.5220/0010878400003122