Effective elastic properties of layered composites under imperfect adhesion

TitleEffective elastic properties of layered composites under imperfect adhesion
Publication TypeJournal Article
Year of Publication2019
AuthorsKhoroshun, LP, Levchuk, OI
Abbreviated Key TitleDopov. Nac. akad. nauk Ukr.
Date Published05/2019

The problem of the effective elastic properties of a layered composite material of a stochastic structure with imperfect adhesion, which is modeled by an interphase layer with defects in the form of micropores, is considered. On the interfaces of the interphase layer with the layers of a filler and a matrix, perfect contact conditions are performed in the form of continuity of displacements and surface stresses. Interphase layers are considered as the third component, consisting of the surface layers of two components and the coupling coatings. The solution of the problem is based on stochastic differential equations of elasticity in displacements for a multicomponent composite material of the layered structure with isotropic and anisotropic components. On the basis of the solution, the effective properties of a three-component composite materials of the layered structure are investigated. The dependences of the effective elastic constants of the layered material with isotropic components on the volume content of a filler and the porosity of the interphase layer are constructed.

Keywordseffective elastic properties, imperfect adhesion, imperfect interface conditions, layered composite, porous interphase layers, stochastic equations

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