Open AccessImplementation of the ultrasonic through-transmission technique for the elastic characterization of fiber-reinforced laminated composite
Author(s) -
Carlos Alberto Meza,
Ediguer E. Franco,
Joao L. Ealo
Publication year - 2019
Publication title -
dyna
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.164
H-Index - 18
eISSN - 2346-2183
pISSN - 0012-7353
DOI - 10.15446/dyna.v86n208.70279
Subject(s) - materials science , characterization (materials science) , composite material , ultrasonic sensor , isotropy , glass fiber , specific strength , fiber , composite number , automotive industry , anisotropy , fiber reinforced composite , acoustics , nanotechnology , engineering , physics , quantum mechanics , aerospace engineering
Laminated composites are widely used in applications when a high strength-to-weight ratio is required. Aeronautic, naval and automotive industries use these materials to reduce the weight of the vehicles and, consequently, fuel consumption. However, the fiber-reinforced laminated materials are anisotropic and the elastic properties can vary widely due to non-standardized manufacturing processes. The elastic characterization using mechanical tests is not easy, destructive and, in most cases, not all the elastic constants can be obtained. Therefore, alternative techniques are required to assure the quality of the mechanical parts and the evaluation of new materials. In this work, the implementation of the ultrasonic through-transmission technique and the characterization of some engineering materials is reported. Isotropic materials and laminated composites of carbon fiber and glass fiber in a polymer matrix were characterized by ultrasound and mechanical tests. An improved methodology for the transit time delay calculation is reported.