A refined impact finite element approach in conjunction with the Reddy's higher-order shear deformation theory and Hertz's contact law is applied for studying the influence of stacking sequence and nanoclay content on impact response of nanoclay/epoxy nanocomposite of 20 layers and 5 mm thickness. Combinations of four typical stacking sequences and six nanoclay contents inside epoxy, namely, the stacking sequences [020], [9020], [0/45/0/-45/0]2S, [90/45/90/-45/90]2S, and nanoclay contents 0, 1, 3, 5, 7 and 9 wt.% at [0/45/0/-45/0]2S are considered. The results of this analysis for four stacking sequences show that the unidirectional layup([0/45/0/-45/0]2S and [90/45/90/-45/90]2S) and cross-ply layup ([020] and [9020]) in this nanocomposite plate indicate the same impact response, respectively. In addition, from results of nanoclay contents 0, 1, 3, 5, 7 and 9 wt.% at [0/45/0/-45/0]2S, it can be seen that the greater the rigidity between 0 to 7 wt.%, the greater the contact force and the smaller the deflection, the smaller the COR. However, at 9 wt.%, the rigidity is reduced, causing the opposite effect of all impact responses. And numerical stress analysis is performed by changing the nanoclay content of nanoclay/epoxy composite laminates from 0 to 9 wt.% to 6 levels. For the effect of nanoclay content on stress analysis of nanocomposite laminates, a finite element formulation based on the higher-order theory and the classical contact law is investigated. Nanoclay/epoxy composites consist of [0/45/0/-45/0]2S laminated sequences of 20 layers thick. Analysis results show that the elastic modulus of nanocomposite increases as the nanoclay content increases from 0 to 7 wt.%, so that the contact force between nanocomposite laminates and impactor increases, and the deflection of nanocomposite and contact duration decrease. And also, at the nanoclay content 9 wt.%, the elastic modulus becomes rather smaller, resulting in the opposite phenomenon, which results in less the contact force and greater the deflection and the contact duration. The stress characteristics show that the principal stress σ1, σ2 and shear stress σ12 are the largest on the third, second, and first layers, respectively, from the top and bottom surfaces of nanocomposite laminates. Thus, it should be fully reflected in the initial design considering the largest principal stress σ1 among these. And also, when a film-coated glass plate is impacted by an external object, the strength of the glass under the film falls significantly, causing internal damage. A finite element program for impact analysis was developed to study the impact behavior of general tempered glass and coated glass plate and its behavior depending on the film thickness. To this study, approaches based on a Whitney and Pagano's First-order Shear Deformation Theory (FSDT) associated with a generalized power law as a contact law are proposed, and the analysis results are compared and reviewed with wave propagation model and energy balance model to verify the accuracy of the analysis results. As a result of this study, coated glass film is very effective in preventing impact. And also, although the presence or absence of coated film has a significant influence on impact behavior, the size of the film thickness is not an important factor in impact behavior.