THE EFFECT OF USING STEEL MESH ON THE INTERLAMINAR FRACTURE TOUGHNESS OF FML COMPOSITES


Akeloğlu M. A., Bayramoğlu M.

The 3rd International Conference of Materials and Engineering Technology (TICMET'21), Gaziantep, Türkiye, 5 - 06 Kasım 2021, ss.109-116

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Gaziantep
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.109-116
  • Çukurova Üniversitesi Adresli: Evet

Özet

Fiber metal laminate (FML) composites were created primarily to improve the fatigue strength of

modern civil aviation industry. And further studies show that, it provides additional advantages

such as, excellent impact and damage tolerance, fire resistance and impact resistance with the aid

of different configurations, while having a low weight. However, the production of a FML

composite is a significant challenge, due to poor bonding at the fiber-metal interface. In this

study, the interfacial bond behavior at the fiber-metal interface was investigated by determining

their Interlaminar Fracture Toughness values. Test specimens were produced by using, extremely

thin stainless steel mesh materials, instead of sheet metal layers as a traditional composition of

FML composites. Specimens were produced as FML (Fiber Metal Laminate) composites with

steel meshes, and FRP (Fiber Reinforced Polymer) composites in the same combination without

steel mesh layer. In experimental stage, specimens were investigated with “DCB (Double

Cantilever Beam) Tensile Testing” in “Mode I”, and their “Interlaminar Fracture Toughness”

values are examined in accordance with ASTM 5528-01 Standards. Finally, test results obtained

from FRP and FML specimens were compared in order to show the effectiveness of using steel

mesh layer for a better Interlaminar Fracture Toughness.