Dynamic Response of Sandwich Cylinders Cored with Aluminum Foam under Internal Blast Loading

Sandwich cylinders cored with aluminum foam have been widely applied in the fabrication of blast protection containers.The experiment under internal blast loading was performed and, based on the Voronoi technique, finite element models of sandwich cylinders were constructed and then used to simulate the deformation process of the sandwich cylinders.The results show that the simulation results agree well with the experiment results.With the increase of the cores' relative densities, the deflections of the inner shells increase and the deflections of the outer shells decrease.Furthermore, the deflections of the shells and the relative density of the cores approximately satisfy a quadratic relationship.