Finite Element Computational Modeling and Simulation Studies of Non-Penetrating Impact Using Fundamental Principles
A set of Mindlin plates bonded together is subjected to loading by impact, which is considered to represent a generic engineering structure and is analyzed through numerical simulation. The objective is to identify optimum configuration in terms of loading, structural dimensions, material properties and composite layup associated with micrometeorites impacts on spacecraft that will not penetrate into its structure. Following the algorithm developed for the problem, the work comprises an in-depth analysis of a generic flat plate structure subjected to impact and numerical simulation. The analyses are based on dynamic response with emphasis on the elastic region. The direct numerical simulation is carried out in parallel for the analysis, synthesis, parametric study and optimization. As simulation case study, the panel structure response to impact loading by a spherical rigid body at certain velocity perpendicular to the panel plate itself and numerical simulation is carried out as appropriate. Simulation results are validated through comparison with analytical work. The entire scheme carried out in this work is a novel comprehensive approach for the structural design of non-penetrated impact on metallic composites. The results show that the use of composites, in particular the bi-metallic composite, is instrumental in tailoring the plate materials to achieve non-penetrating impact.
R. Varatharajoo, F.I. Romli, K.A. Ahmad, D.L. Majid and F. Mustapha
H. Djojodihardjo and A. S. Mahmud, "Finite Element Computational Modeling and Simulation Studies of Non-Penetrating Impact Using Fundamental Principles", Applied Mechanics and Materials, Vol. 629, pp. 62-70, 2014