Metadata (abstracts and keywords) for the articles in the journal
I. V. Zlobina Study of the interaction of microwave electromagnetic fields with structures from the cured cfrp with embedded distributed in volume of metal elements // Vestnik I. Yakovlev Chuvach State Pedagogical University. Series: Mechanics of a limit state . 2019. № 1(39). p. 57-65
Author(s):
I. V. Zlobina
Index of UDK:
621-039-419; 620.22-419; 537.868
DOI:
10.26293/chgpu.2019.39.1.008
Title:
Study of the interaction of microwave electromagnetic fields with structures from the cured cfrp with embedded distributed in volume of metal elements
Keywords:
Polymer composite materials, reinforcing carbon fibers embedded distributed metal structure, cellular elements, microwave radiation, energy flux density, reflection, absorption.
Abstracts:
The analysis of trends in the development of aviation technology for various purposes, showed the expansion of its application in the load-bearing structures of polymer composite materials (PCM), reinforced with carbon fibers with a combined structure containing distributed in the volume of metal elements, in particular – honeycomb fillers. It is noted that the pronounced anisotropy of physical and mechanical properties of such structures of different chemical composition and properties of materials makes it difficult to maneuver aircraft with large overloads due to different resistance to dynamic loads acting in different directions. It is especially important to ensure the strength of structures made of PCM, under the action of bending and shear loads. It is shown by the example of studies carried out earlier by the authors that the problem of increasing the strength characteristics of PCM can be solved by their quasi-structuring in the microwave electromagnetic field. In order to identify the possibility of strengthening microwave processing of structures made of PCM with built-in honeycomb metal panels, the most common and modern and advanced aviation technology, experimental studies of the distribution of the energy flux of microwave radiation with a frequency of 2450 MHz in the near zone, passed through the PCM and reflected from its surface. The hardened PCM reinforced with carbon fibers, PCM with built-in honeycomb elements and structural dielectric material on the example of PP polypropylene were compared. It was found that the density of the reflected 7 mm thick polypropylene microwave energy flow is 1.42Thus, the presence of built-in cellular elements in the structure of carbon fiber reinforced PCM does not lead to an increased reflection of the microwave electromagnetic field, but, on the contrary, less than is observed in conventional designs of PCM. This makes it possible to perform hardening quasi-structuring of such products and increase their operating parameters.
The contact details of authors:
Zlobina Irina Vladimirovna,
Cand. Sci. Tech., Assoc. Professor, Yuri Gagarin State Technical University of Saratov, Saratov, Russia.