In recent years, there has been a growing replacement of synthetic fibers by natural ones,
particularly by autochthonous materials. In the case of Algeria, the most abundant plant resources are
the PALF (Pineapple leaf fiber), the date palm, and the Alfa fibers. In this work, the development and
use of analytical and numerical methods are proposed to predict the mechanical properties of layers
based on natural fibers that will be applied to manufacture skins of the sandwich cylinder. To achieve
these predictions, four analytical models were used, namely the Halpin–Tsai, the Chamis, the Hashin
vs. Rosen, and the ROM. The analytical results were compared with the numerical simulations and
experimental data. The prediction of the elastic properties of the three fiber-based eco-composites
showed an important dispersion in terms of stiffness.
