On the impact response of sandwich composites with cores of balsa wood and PVC foam

Atas C., Sevim C.

COMPOSITE STRUCTURES, cilt.93, sa.1, ss.40-48, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 93 Sayı: 1
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.compstruct.2010.06.018
  • Dergi Adı: COMPOSITE STRUCTURES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.40-48
  • Anahtar Kelimeler: Sandwich composite, PVC foam, Balsa wood, Impact, Damage
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

This paper presents an experimental investigation on impact response of sandwich composite panels with PVC foam core and balsa wood core. A number of tests were performed under various impact energies. Damage process of the sandwich composites is analyzed from cross-examining load-deflection curves, energy profile diagrams and the damaged specimens. The primary damage modes observed are; fiber fractures at upper and lower skins, delaminations between adjacent glass-epoxy layers, core shear fractures, and face/core debonding. After visual inspection of the top and bottom face-sheets, initial examination, damage mechanisms at the interior layers and cores were ascertained through destructive analysis, i.e. sectioning by an abrasive water-jet machine, of samples. In addition to the single impacts, ;repeated impact response of the samples is also investigated. (C) 2010 Elsevier Ltd. All rights reserved.