Numerical analysis of vibration and transient behaviour of laminated composite curved shallow shell structure: An experimental validation

Abstract

The natural frequency and transient responses of carbon/epoxy layered composite plate structure were analysed through the instrumentality of two higher-order mid-plane kinematic models in this article. The mathematical formulation of the layered composite structure was further utilised to develop a computer programme in MATLAB-15.0 to evaluate the mentioned responses. The practical relevance of the present higherorder models was established via comparing the present numerical results computed using suitable MATLAB computer code with the in-house experimental test data. Additionally, the fundamental frequency and transient responses of the carbon fibre-reinforced epoxy composite plate structure were simulated via finite-element package (ANSYS) by means of the ANSYS Parametric Design Language (APDL) code. The simulated frequencies were compared with those of the present experimental and MATLAB results. Finally, the significance of the proposed higher-order kinematics was established via solving a different kind of illustrations to investigate the inuence of various geometrical and material parameters on the dynamic responses of layered composite structure, discussed in detail.