Low-velocity impact response of doubly curved symmetric cross-ply laminated panel with embedded SMA wires

In this paper, the dynamic response of thin smart curved composite panel subjected to low-velocity transverse impact is investigated. Shape memory wires are used to reinforce the curved composite panel in a smart way. One-dimensional thermodynamic constitutive model by Liang and Rogers is used for estimating the structural recovery stress. The two degrees-of-freedom springs–masses model is used for evaluation of the contact force between the curved composite panel and the impactor. This work is benefited from the linear Hertzian contact model which is linearized for the impact analysis of the curved composite panel. The governing equations of the curved panel are provided by the first-order shear deformation theory and solved by Fourier series related to simply supported boundary condition. For this purpose, the equation of doubly curved panel motion included the uniform in-plane forces is obtained. By the present analysis, the curved composite panel behavior under low-velocity impact, and also the effect of the impact parameters, the shape memory wire and the curved panel dimensions are studied.