Impact Deformation on curved nano composite panels

In this study, the low velocity impact response ofcylindrically curved bi-layer panels is studied. A largenumber of parameters affect the impact dynamics, andmany models have been used previously, these models canbe classified as, energy-balance models; spring-massmodels and complete models in which the dynamicbehavior of the structure is exactly modeled. In this study aspring-mass model is used to evaluate the displacementresponse of the panel. This work uses the modified Hertziancontact model which is linearized form of general hertzcontact law. Fourier series expansion is used to derive thegoverning equations of the panel. In this paper, the effectsof the panel curvature, impact velocity and mass ofimpactor on the shell behavior under low-velocity impactare investigated. The results show that changing the panelradius of curvature will change the panel paneldeformation. A numerical simulation analysis is used forresult validation.