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Effect of Frictional Slipping on the Strength of Ribbon-Reinforced Composite

Yosyf Piskozub¹, Heorhiy Sulym²

¹Department of Applied Mathematics and Physics, Ukrainian Academy of Printing, Pidgolosko 19, 79020 L'viv, Ukraine.

Materials (Basel, Switzerland)

|September 10, 2021

Abstract:

A numerical-analytical approach to the problem of determining the stress-strain state of bimaterial structures with interphase ribbon-like deformable inhomogeneities under combined force and dislocation loading has been proposed. The possibility of delamination along a part of the interface between the inclusion and the matrix, where sliding with dry friction occurs, is envisaged. A structurally modular method of jump functions is constructed to solve the problems arising when nonlinear geometrical or physical properties of a thin inclusion are taken into account. A complete system of equations is constructed to determine the unknowns of the problem. The condition for the appearance of slip zones at the inclusion-matrix interface is formulated. A convergent iterative algorithm for analytical and numerical determination of the friction-slip zones is developed. The influence of loading parameters and the friction coefficient on the development of these zones is investigated.

Keywords:

bimaterial composite friction jump functions nonperfect contact ribbon-like reinforcement thin inclusion

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