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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Composites: Mechanics, Computations, Applications: An International Journal
ESCI SJR: 0.354 SNIP: 0.655 CiteScore™: 1.2

ISSN Печать: 2152-2057
ISSN Онлайн: 2152-2073

Composites: Mechanics, Computations, Applications: An International Journal

DOI: 10.1615/CompMechComputApplIntJ.2020031192
pages 113-127

INFLUENCE OF THE STRUCTURE OF EPOXY COMPOSITE FILLED WITH DISCRETE FIBERS ON IMPACT FRACTURE OF VEHICLE PARTS

A. V. Buketov
Kherson State Maritime Academy, 20 Ushakov Ave., Kherson, 73009, Ukraine
А. V. Sapronova
Kherson State Maritime Academy, 20 Ushakov Ave., Kherson, 73009, Ukraine
O. O. Sapronov
Kherson State Maritime Academy, 20 Ushakov Ave., Kherson, 73009, Ukraine
N. M. Buketova
Kherson State Maritime Academy, 20 Ushakov Ave., Kherson, 73009, Ukraine
V. V. Sotsenko
Kherson State Maritime Academy, 20 Ushakov Ave., Kherson, 73009, Ukraine
Mykola V. Brailo
Kherson State Maritime Academy, 20 Ushakov Ave., Kherson, 73009, Ukraine
Serhii V. Yakushchenko
Kherson State Maritime Academy, 20 Ushakov Ave., Kherson, 73009, Ukraine
P. О. Maruschak
Ternopil Ivan Puluj National Technical University, 56 Ruska Str., Ternopil, 46001, Ukraine
S. V. Panin
Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 2/4 Akademicheskii Ave., Tomsk, 634055, Russia; National Research Tomsk Polytechnic University, 2A Lenin Ave., Bld. 11, Tomsk, 634028, Russia
Sergey O. Smetankin
Kherson State Maritime Academy, 20 Ushakov Ave., Kherson, 73009, Ukraine
Andriy G. Kulinich
Kherson State Maritime Academy, 20 Ushakov Ave., Kherson, 73009, Ukraine
Viacheslav G. Kulinich
Kherson State Maritime Academy, 20 Ushakov Ave., Kherson, 73009, Ukraine

Краткое описание

The influence of the content of a mixture of discrete organic fibers on the mechanical strength and nature of destruction of epoxy composites is investigated. It is proved that the introduction of fiber additive into an epoxy binder at an optimum content (q = 0.01 wt.%) increases the impact strength of polymer composites 1.8 times in comparison with the epoxy matrix. It is shown that the growth of impact strength is connected with self-regulation of the structure of composites filled with discrete fibers during the cross-linking process of polymer composites. To determine the resistance of the developed composite materials to impact shocks, changes in spectra of crack propagation during impact shocks with time are investigated and deformation dependences of specimens on shocks are found. The destruction surface of composite materials filled with fiber additive is investigated by the optical microscopy method. An ordered structure of composite materials at the optimum content of a mixture of discrete organic fibers (without fragile areas on the destruction surface and visible granules) is found, which allows one to state the thermodynamic equilibrium in heterogeneous systems after their cross-linking. This additionally indicates a high index of mechanical strength of developed epoxy composites.

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