Static response of a slightly precurved layered beam with interlayer slip

Abstract

This contribution addresses moderately large deflections of a slightly precurved simply supported beam composed of three layers symmetrically disposed about the central axis. The elastic beam layers are flexibly bonded and thus exposed to interlayer slip. Since the displacements of the supports are fully restrained, the static response is geometrically nonlinear. The results of an application example demonstrates the grave effect of interlayer slip on the nonlinear deflection of slightly precurved layered beams.

Moderately large deflection of slightly curved layered beams with interlayer slip

“…In many of these studies, a core element is a nonlinear axial strain-displacement relation presented in [19]. However, to the best knowledge of the authors, apart from a preliminary study [17], there is no beam theory to date that analyzes the moderately large static response of slightly curved layered beams with interlayer slip. In the present study, therefore, such a theory is proposed for three-layer beams, where an initial deflection is considered in the underlying nonlinear axial strain-displacement relation [19].…”