The effect of face-sheet thickness on low-velocity impact response of sandwich composites with foam cores

Atas C., Potoglu U.

JOURNAL OF SANDWICH STRUCTURES & MATERIALS, cilt.18, sa.2, ss.215-228, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 18 Sayı: 2
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1177/1099636215613775
  • Dergi Adı: JOURNAL OF SANDWICH STRUCTURES & MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.215-228
  • Anahtar Kelimeler: Sandwich, composite, foam core, impact, damage
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

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.