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