Effective elastic properties of stochastic unidirectional fibrous composites under imperfect adhesion

1Khoroshun, LP, 1Levchuk, OI
1S.P. Timoshenko Institute of Mechanics of the NAS of Ukraine, Kyiv
Dopov. Nac. akad. nauk Ukr. 2018, 9:51-63
https://doi.org/10.15407/dopovidi2018.09.051
Section: Mechanics
Language: Russian
Abstract: 

A problem of effective elastic properties of a stochastic unidirectional fibrous composite is considered. The interface conditions are assumed in the form of the presence of porous interphase layers between the matrix and cylindrical fibers, which are accepted as the third component. An approach, in which the three-component material is reduced to a two-component one, by replacing the fiber with the interphase layer by a composite fiber with equivalent or effective properties, is used. A dependence of the effective moduli on the volume fractions of fibers and the porosity of interphase layers is investigated.

Keywords: effective elastic properties, imperfect interphase conditions, porous interphase layers, stochastic equations, unidirectional fibrous composite
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