scholarly journals Hardware and Software for Thermal Nondestructive Testing of Metallic and Composite Materials

2016 ◽  
Vol 671 ◽  
pp. 012011 ◽  
Author(s):  
A O Chulkov ◽  
V P Vavilov
Keyword(s):  
Composite Materials ◽  
Nondestructive Testing ◽  
Thermal Nondestructive Testing ◽  
Metallic And Composite Materials

Features of Thermal Nondestructive Testing of Impact Damage to Products Made of Polymer Composite Materials

2020 ◽  
Vol 56 (9) ◽  
pp. 706-717
Author(s):  
S. L. Chernyshev ◽  
M. Ch. Zichenkov ◽  
V. I. Golovan ◽  
A. M. Zaitsev ◽  
E. A. Kaz’min ◽  
...  
Keyword(s):  
Composite Materials ◽  
Nondestructive Testing ◽  
Polymer Composite ◽  
Impact Damage ◽  
Polymer Composite Materials ◽  
Thermal Nondestructive Testing

Метод и аппаратура инфракрасного и ультразвукового термографического контроля крупногабаритных композиционных изделий сложной формы

2021 ◽  
Vol 7 ◽  
pp. 67-74
Author(s):  
А.О. Чулков ◽  
Д.А. Нестерук ◽  
Б.И. Шагдыров ◽  
В.П. Вавилов
Keyword(s):  
Neural Network ◽  
Nondestructive Testing ◽  
Data Fusion ◽  
Defect Detection ◽  
Complex Shape ◽  
Reference Sample ◽  
Robotic System ◽  
Image Stitching ◽  
Large Size ◽  
Thermal Nondestructive Testing

A robotic system for combined thermal nondestructive testing of large-size parts, including data fusion, is described. The efficiency of combining results of infrared (IR) and ultrasonic IR thermographic inspection has been demonstrated on a complex-shape reference sample containing 18 surrogates of manufacture and in-service defects. The data fusion algorithms including IR image stitching in space and automated defect detection and characterization by using a neural network have demonstrated efficiency of the proposed approach in practical testing.

Specific Features of Nondestructive Testing of Polymer and Composite Materials Using Air-Coupled Ultrasonic Excitation and Laser Vibrometry

2021 ◽  
Vol 57 (8) ◽  
pp. 647-655
Author(s):  
V. Yu. Shpil’noi ◽  
V. P. Vavilov ◽  
D. A. Derusova ◽  
N. V. Druzhinin ◽  
A. Yu. Yamanovskaya
Keyword(s):  
Composite Materials ◽  
Nondestructive Testing ◽  
Laser Vibrometry

scholarly journals Application and evaluation of the technical condition of composite materials in aircraft and unmanned aerial vehicles by acoustic emission method of nondestructive testing

2022 ◽  
Vol 21 (4) ◽  
pp. 328-336
Author(s):  
A. V. Popov ◽  
A. O. Samuylov ◽  
I. S. Cherepanov
Keyword(s):  
Acoustic Emission ◽  
Composite Materials ◽  
Nondestructive Testing ◽  
Unmanned Aerial Vehicles ◽  
Technical Condition ◽  
Acoustic Emission Method ◽  
Emission Method ◽  
Software Complex ◽  
Aerial Vehicles ◽  
Aerial Vehicle

Introduction. The paper analyzes the application of composite materials as the main determining method of reducing the mass of the airframe and an unmanned aerial vehicle. Advanced nondestructive testing methods provide assessing the technical condition of these materials, as well as determining stress concentrators on the airframe and an unmanned aerial vehicle with high accuracy in order to make a decision on the further operation of this object under control. The objective of the work was to increase the accuracy and efficiency of the assessment of crack resistance of composite materials through the acoustic emission control.Materials and Methods. This paper presents the nomenclature of composite materials used in the construction of various aircraft, including unmanned aerial vehicles. The most possible probable defects of these materials due to the influence of operational factors are presented. The applied methods of nondestructive testing of composite material and selection of the most suitable one according to specific advantages were compared. An experiment was carried out to determine the strength limits of carbon fiber using a hardware and software complex by acoustic emission method. The research results are presented in the form of drawings projected by the hardware and software complex.Results. The application of the acoustic-emission method of composite material control is described.Discussion and Conclusions. The results obtained experimentally can be used in the process of determining the strength limits of various composite materials by the acoustic emission method of nondestructive testing to assess the technical condition in mechanical engineering, shipbuilding, and aircraft construction. The paper is recommended to researchers involved in the design of aircraft and unmanned aerial vehicles.

scholarly journals Using Hilbert Transform in Diagnostic of Composite Materials by Impedance Method

2020 ◽  
Vol 64 (4) ◽  
pp. 334-342 ◽  
Author(s):  
Volodymyr Eremenko ◽  
Artur Zaporozhets ◽  
Vitalii Babak ◽  
Volodymyr Isaienko ◽  
Kateryna Babikova
Keyword(s):  
Composite Materials ◽  
Nondestructive Testing ◽  
Hilbert Transform ◽  
Instantaneous Frequency ◽  
Information Quality ◽  
Low Frequency ◽  
Mechanical Impedance ◽  
Phase Characteristic ◽  
Impedance Method ◽  
Materials Testing

The article is devoted to the problem of the increasing of information quality for the impedance method of nondestructive testing. The purpose of this article is to get for the pulsed impedance method of nondestructive testing the additional informative parameters. Instantaneous values of the information signal's amplitude is a sensitive parameter to the effects of interference, in particular friction, which necessitates the use of additional informative features. It was experimentally measured signals from defective and defectless areas of the test pattern. Using of the Hilbert transform gave possibility to determine phase characteristics of these signals and realize demodulation to extract a low-frequency envelope for further analysis of its shape. It was received the informative features as a result of researches. Among them are instantaneous frequency of a signal, the integral of a phase characteristic on the selected interval and the integral of a difference signal phase characteristics. In order to compare quality of the defect detection using selected parameters it was carried out evaluation of the testing result reliability for a product fragment made of a composite material. Considering the influence of the change in the mechanical impedance of the researched area on the phase-frequency characteristics of the output signal of the converter, it is proposed to use as the diagnostic signs: the instantaneous frequency and the value of the phase characteristic of the current signal for certain points in time. The proposed informative features enable to increase general reliability of composite materials testing by the pulsed impedance method.

scholarly journals Evaluating the Quality of Reinforced Concrete Electric Railway Poles by Thermal Nondestructive Testing

2018 ◽  
Vol 8 (2) ◽  
pp. 222 ◽  
Author(s):  
Dmitry Sannikov ◽  
Alexander Kolevatov ◽  
Vladimir Vavilov ◽  
Marina Kuimova
Keyword(s):  
Reinforced Concrete ◽  
Nondestructive Testing ◽  
Thermal Nondestructive Testing ◽  
Electric Railway

scholarly journals Portable device for thermal nondestructive testing of hidden corrosion in metallic shells by using a LED heat source

2019 ◽  
Vol 121 ◽  
pp. 01014
Author(s):  
D.A. Simonov ◽  
A.I. Moskovchenko
Keyword(s):  
Nondestructive Testing ◽  
Petrochemical Industry ◽  
Spectral Band ◽  
Promising Technique ◽  
Material Loss ◽  
Practical Applications ◽  
High Productivity ◽  
Safety Requirements ◽  
Thermal Nondestructive Testing ◽  
Hidden Corrosion

Thermal nondestructive testing (NDT) is a promising technique for detecting hidden corrosion in metallic shells, such as above-ground tanks, pipes, containers, etc., due to its high productivity and illustrativeness. However, the use of powerful halogen lamps in practical applications is questionable because of reflected radiation and safety requirements. In this paper, a portable thermal NDT device using a LED heater is described. Such heaters operate at wavelengths which are beyond of the spectral band of contemporary infrared imagers. Also, they can use a battery as a power supply thus meeting in-field requirements, for example, in the petrochemical industry. Depending on defect size and material loss, the developed portable thermal NDT device can detect corrosion in steel shells with thickness up to 8 mm.

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