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Publicações
Villavicencio, R., Sutherland, L.S. e Guedes Soares, C. (2011), “Numerical simulation of laterally impacted clamped circular steel plates”, Advances in Marine Structures, C. Guedes Soares and W. Fricke, (Eds.), Taylor & Francis Group, London, UK, pp. 419-427
The paper presents numerical simulations of previously reported drop weight impact tests examining the dynamic response of fully clamped steel circular plates struck transversely at the centre by a mass with a spherical indenter. The impact velocity varied from 0.5 to 6.0 m/s. The plates showed no visible damage at the very low incident energies, but suffered both permanent indentation and global deformation as incident energy was increased. The numerical modelling was performed using the LS-DYNA nonlinear, dynamic finite element software and is based on a previous finite element analysis of aluminium plates under lateral impact. The numerical calculations used can accurately predict the response of deflections, forces and absorbed energies, using both shell and solid element types. However, solid elements were required to obtain a satisfactorily accurate prediction of the deformed shape including the indentation into the thickness. The steel plastic response is compared and discussed with that of similar aluminium plates.
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