Buckling analysis of functionally graded material grid systems

Darılmaz K., Aksoylu M. G., Durgun Y.

STRUCTURAL ENGINEERING AND MECHANICS, cilt.54, sa.5, ss.877-890, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 54 Sayı: 5
  • Basım Tarihi: 2015
  • Doi Numarası: 10.12989/sem.2015.54.5.877
  • Dergi Adı: STRUCTURAL ENGINEERING AND MECHANICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.877-890
  • Anahtar Kelimeler: Grid system, functionally graded materials, buckling, hybrid finite element, EULER-BERNOULLI BEAMS, FREE-VIBRATION, FINITE-ELEMENT, ELASTICITY SOLUTIONS, FORCED VIBRATION, DYNAMIC-ANALYSIS, TIMOSHENKO, MODELS, PLATES, LOADS
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

This paper aims to fill the technical gap on the elastic buckling behavior of functionally graded material (FGM) grid systems under inplane loads on which few research has been done. Material properties of an FG beam are assumed to vary smoothly in the thickness direction according to power and exponential laws. Based on a hybrid-stress finite element formulation, buckling solutions for FGM grid systems consisting of various aspect ratios and material gradation are provided. The numerical results demonstrate that the aspect ratio and material gradation play an important role in the buckling behavior of FGM grid systems. We believe that the new results obtained from this study, will be very useful to designers and researchers in this field.