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Экспериментальное исследование прочности конического заполнителя для трехслойных конструкций

Экспериментальное исследование прочности конического заполнителя для трехслойных конструкций

Abstract

Information on experimental studies proving the effectiveness of theoretical calculations of discrete conical aggregate parameters is lacking in the scientific literature. This article deals with the experimental study of the strength of a conical core in sandwich structures used in aerospace, building, and machine building industries. The discrete conical aggregate parameters include the elastic modulus, shear modulus, and shear and compression strength. The obtained theoretical and experimental data are compared and analyzed. The study showed that the discrepancy between the theoretical and experimental data is within the permissible limits, which makes it possible to use theoretical calculations when designing sandwich structures. The results of research improve the knowledge about sandwich constructions design.

В научной литературе не представлены экспериментальные исследования, подтверждающие эффективность теоретических расчетов параметров дискретных конических заполнителей. В статье описано экспериментальное исследование прочности конического заполнителя для трехслойных конструкций, используемых в авиационной космической технике, а также в строительстве и машиностроении. Определены параметры дискретного конического заполнителя: модуль упругости, модуль сдвига, пределы прочности при сдвиге и сжатии. Приведен анализ расхождения теоретических и экспериментальных данных. Исследование показало расхождение между теоретическими и экспериментальными данными конического заполнителя в допустимых пределах, что позволяет применять теоретические расчеты при проектировании трехслойных конструкций.

Keywords

КОНИЧЕСКИЙ ЗАПОЛНИТЕЛЬ, ТРЕХСЛОЙНАЯ КОНСТРУКЦИЯ, СЖАТИЕ, СДВИГ

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
bronze