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2 Acta Mechanica et Automatica

2 2014

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Stresses in coating with gradient interlayer caused by contact loading

Kulchytsky-Zhyhailo R., Bajkowski A.

Acta Mechanica et Automatica

2014

Vol. 8, no. 1

33--37

The three-dimensional problem of elasticity concerning inhomogeneous half-space under normal and tangential loading applied in circular region was considered. The half-space is composed of the homogeneous body and double-layer coating which includes a homogeneous top coat and a gradient interlayer. The solution method is based on the two-dimensional integral Fourier transform. The influence of mechanical properties of coatings component and coefficient of friction on the first principal stress distribution was considered.

Stress distribution in a composite coating by local loading of the free surface

Kulchytsky-Zhyhailo R., Kołodziejczyk W.

Acta Mechanica et Automatica

2014

Vol. 8, no. 2

83--87

A three-dimensional problem of the theory of elasticity for halfspace with multilayered coating with periodical structure is consid-ered. The fundamental layer consists of two layers with different thicknesses and different mechanical properties. The coating is described by the homogenized model with microlocal parameters. The solution is derived by using integral Fourier transform. Calculations were con-ducted with the assumption of elliptical distribution of normal and tangential tractions applied to the surface of the layered system in a cir-cular area. Analysis of the stresses was restricted to the first principal stress distribution.