Computed Tomography analysis of damage in composites subjected to impact loading

Abstract

The composites, used in the transportation engineering, include different classes with a wide rangeof materials and properties within each type.The following different typologies of composites have been investigated: laminated composites, PVC foamsandwiches, aluminium foam and honeycomb sandwiches.Aim of this paper was the analysis of low-velocity impact response of such composites and the investigation oftheir collapse modes.Low velocity impact tests were carried out by a drop test machine in order to investigate and compare theirstructural response in terms of energy absorption capacity.The failure mode and the internal damage of the impacted composites have been, also, investigated using 3DComputed Tomography.