Static and dynamic analyses of composite beams with interlayer slip

Lengyel, Ákos József and Ecsedi, István (2015) Static and dynamic analyses of composite beams with interlayer slip. JOURNAL OF COMPUTATIONAL AND APPLIED MECHANICS, 10 (1). pp. 25-40. ISSN 1586-2070

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Abstract

The present paper gives analytical solutions for shear deformable two-layer beams with weak shear connections. Timoshenko's kinematic assumptions are applied to both layers with different cross-sectional rotations. A linear constitutive equation is used between the horizontal shear force and the interlayer slip. The applied loads act in the plane of symmetry of a two-layered beam and the material-geometrical properties do not depend on the axial coordinate. For simply supported beam closed form solutions are derived for the deflection, slip and cross-sectional rotations. The eigenfrequencies of a simply supported beam are determined and compared with the solutions obtained by the applications of Euler-Bernoulli and Euler-Bernoulli-Rayleigh beam models.

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