10.14489/td.2020.04.pp.040-045

2020, 04 April

DOI: 10.14489/td.2020.04.pp.040-045

Kuznetsov А. О., Koshelnikov V. S., Chernov L. A., Budadin O. N.
MODELING OF RANDOM GEOMETRIC CHARACTERISTICS OF INCLUSIONS IN THE MATERIAL
(pp. 40-45)

Abstract. In the process of manufacturing complex multilayer PC structures, metal elements of small sizes (from 0.1…0.2 to 15 mm) can be detected randomly located in the bulk of the material (at a depth of up to 100 mm) and their presence is unacceptable for normal object operation. This determines the relevance of detecting small-sized metal inclusions in final products and in the technological cycle of their production. The main problems in detecting small-sized metal inclusions are their random location, size, shape and physical properties of both the metal inclusions and the product material. Due to the great laboriousness of the experimental process of testing the technology for detecting metal inclusions in PCM (defects settings in it, etc.), theoretical studies using modern mathematical models imitating real experimental studies are becoming important. The presence of modern mathematical apparatus and powerful computing technology contributes to this. Experimental studies have shown that inclusions have random sizes and shapes; therefore, in theoretical studies of the detection process, it is incorrect to use the deterministic shape of metal particles. The analysis of the current state of the developed mathematical models and algorithms that solve the problems of modeling various objects of random sizes, shapes, distribution and physical properties is carried out and it showed that a similar problem had not been solved before. While the work was in progress, a random distribution of the geometric dimensions of inclusions by a shape such as a polyhedral pyramid in the body of the control object was implemented. The developed model showed fair accuracy of modeling random geometric characteristics of particles. The algorithm created on the basis of the developed mathematical model of inclusions with random characteristics is supposed to be added as the first part of 3D modeling software for the detection of small metal inclusions in PCM.

Keywords: eddy current testing, composite materials, magnetic fields, metal particles, finite element method, COMSOL Multiphysics, modeling, quality.

+ - About the Authors Click to collapse

A. O. Kuznetsov (JSC “CRISM”, Moscow, Russia; National Research University “MPEI”, Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
V. S. Koshelnikov, L. A. Chernov (National Research University “MPEI”, Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
O. N. Budadin (JSC “CRISM”, Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Kuznetsov A. O., Chernov L. A., Budadin O. N. (2018). Eddy current method and control tools for small metal inclusions in multilayer composite structures. Radio electronics, electrical engineering and energy: abstracts of the XXIV International scientific and technical conference of students and graduate students. Moscow. [in Russian language]
2. Kuznetsov A. O. (2018). Detection of smallsized metal inclusions in products from composite materials by the eddy current method. TestMat. The main trends, directions and prospects for the development of non-destructive testing methods in the aerospace industry: abstracts of the X All-Russian Conference, pp. 162 – 166. Moscow. [in Russian language]
3. Kuznetsov A. O., Chernov L. A., Budadin O. N. (2018). Modern metal detectors (review). Devices and methods of non-destructive quality control of products and structures from composite and heterogeneous materials: abstracts of the III scientific and technical conference, pp. 49 – 50. Saint Petersburg. [in Russian language]
4. Barynin V. A., Budadin O. N., Kul'kov A. A. (2013). Modern technologies of non-destructive testing of structures made of polymer composite materials. Moscow: ID «Spektr». [in Russian language]
5. Kuznetsov A. O., Chernov L. A., Budadin O. N. (2019). Current state of metallic inclusions detection devices in non-conductive composite materials. Voprosy oboronnoy tekhniki, Series 15, 193(2), pp. 81 – 88. Moscow: FGUP «NTTs «Informtekhnika». [in Russian language]
6. Walter Frei. (2017). How to create randomized geometry using macros. Available at: https://www.comsol.ru/blogs/how-to-create-a-randomized-geometry-using-model-methods/ (Accessed: 20.05.2019). [in Russian language]
7. Il'in V. A., Poznyak E. G. (1999). Linear algebra. Moscow: Nauka – Fizmatlit. [in Russian language]
8. Bogomolova E. P. (Ed.), Byvsheva I. F., Zharinov V. V., Myagkova M. P., Tuganbaev A. A. (1992). Linear Algebra and Analytical Geometry. Moscow: Izdatel'stvo MEI. [in Russian language]

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