Experimental and numerical study on the low-velocity impact behavior of foam-core sandwich panels

This paper presents the results of an experimental and numerical study on the low-velocity impact behavior of foam-core sandwich panels. Panels with polyurethane foam core and plain weave carbon fabric laminated face-sheets were subjected to low-velocity impact with hemispherical steel impactors of different diameters at various energy levels. Digital image correlation technique (a non-contact measuring system) was used to measure the real-time...