The effect of face-sheet thickness on low-velocity impact response of sandwich composites with foam cores
JOURNAL OF SANDWICH STRUCTURES & MATERIALS, vol.18, no.2, pp.215-228, 2016 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 18 Issue: 2
- Publication Date: 2016
- Doi Number: 10.1177/1099636215613775
- Journal Name: JOURNAL OF SANDWICH STRUCTURES & MATERIALS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.215-228
- Keywords: Sandwich, composite, foam core, impact, damage
- Dokuz Eylül University Affiliated: Yes
Abstract
This paper presents an experimental investigation on impact response of sandwich composite panels with different face-sheet thicknesses. A number of low velocity impact tests were performed under various impact energies. The damage process of the sandwich composites consisted of glass/epoxy face-sheets, and foam cores are analyzed from cross-examining some graphs such as load-deflection curves and damaged specimens. The primary damage modes observed are fiber fractures at upper and lower skins, delaminations between adjacent glass-epoxy layers, and core shear fractures.