Work on Low-velocity Impact Properties of Foam Sandwich Composites with Various Face Sheets

Foam core sandwich composites in conjunction with various facings composed of glass, stitching glass, carbon, carbon/Kevlar hybrid, and Kevlar fabric were fabricated by using RTM process; and low-velocity impact performance was studied at three energy levels. This article proposes that the damage extent of foam core sandwich construction may be characterized by the average damage angle, penetration depth, and maximal cracking width. The results...