Effect of the root crack on the lateral buckling loads and natural frequencies of sandwich composite beams

KIRAL Z., TOYGAR E. M., GÖREN KIRAL B., Sayman O.

COMPOSITES PART B-ENGINEERING, cilt.53, ss.308-313, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 53
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.compositesb.2013.04.060
  • Dergi Adı: COMPOSITES PART B-ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.308-313
  • Anahtar Kelimeler: Laminates, Buckling, Finite Element Analysis (FEA), Mechanical testing
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

This study aims to examine the effect of interfacial root crack on the lateral buckling and free vibration responses of a sandwich composite beam experimentally and numerically. Lateral buckling loads and natural frequencies in a thin sandwich composite cantilever beam with root crack are determined. The crack with various lengths is opened between the face sheet and foam core, such as 50, 100, 150 and 200 mm. lateral buckling and free vibration tests of these samples are carried out. For the numerical analysis, ANSYS finite element software is used. Results obtained by numerical analyses and experiments are compared and it is seen that there is a good agreement between them. (C) 2013 Elsevier Ltd. All rights reserved.