Open AccessLamina properties non-destructive characterisation of asymmetric carbon fiber reinforced laminates
Author(s) -
Endija Namsone,
Д. А. Ермаков
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/660/1/012053
Subject(s) - materials science , lamina , characterization (materials science) , finite element method , composite material , vibration , reduction (mathematics) , material properties , fiber , structural engineering , acoustics , mathematics , geometry , nanotechnology , engineering , botany , physics , biology
A non-destructive technique – numerical-experimental method, based on vibration tests is applied for the characterization of lamina properties of asymmetric carbon fiber reinforced laminates. The main idea of this procedure is the determination of simple mathematical models (response surfaces), using the finite element analysis at the reference points of experimental design. Therefore, a significant reduction of computational efforts can be attained. For the purpose of characterization, two asymmetric carbon fiber laminated specimens were prepared, using the prepreg manual layout technology. To evaluate the elastic material properties obtained, the numerical resonant frequency, determinated by using identified material properties, were successfully compared with experimentally measured and high accuracy with average relative error less than 1% was reached.