Abstract
In this study, low-velocity impact response of cylindrically curved bilayer panels is studied. A large number of parameters affect the impact dynamics, and many models have been used previously; these models can be classified as energy-balance model; spring–mass model and complete models in which the dynamic behavior of the structure is exactly modeled. In this study, a spring–mass model is used to evaluate the displacement response of curved panel. This work uses modified Hertz contact model which is linearized form of general Hertz contact law. Fourier series expansion is used to derive the governing equations of panel. In this paper, the effects of panel curvature and mass of impactor on the shell behavior under low-velocity impact are investigated. The results show that changing the panel radius of curvature will change the panel deformation. A numerical simulation analysis is used for result validation, and the results are compared to analytical model.
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