Evaluating Hyperelastic Properties of Geotextiles under Uniaxial Loading

Authors: Belhadj Fatma Zohra, Belhadj Ahmed Fouad, Chabaat Mohamed

Abstract:

The properties of geotextiles can impact the long-term behavior of reinforced soils, which can lead to unexpected problems such as instability and excessive deformation. Research into the material’s rheological properties and nonlinear behavior is required to overcome this issue. This study focuses on six isotropic hyperelastic models (Neo-Hooke, Mooney-Rivlin, Ogden, Yeoh, Arruda-Boyce, and Van der Waals) commonly used to describe the behavior of PET woven geotextiles in civil engineering applications. The models are adjusted for uniaxial tension testing in the warp and weft directions based on experimental data; the Yeoh and Neo-Hooke models accurately predict the behavior of these geotextiles. The study aims to enhance an understanding of how geotextiles behave under varying loads through testing and finite element simulations. The strong correlation between experimental and simulation results can help develop hyperelastic material models for geotextiles. This framework can be beneficial for manufacturers and engineers in addressing soil-structure interaction concerns effectively in their projects.

Keywords: soil-structure interaction interface, geotextiles rheological characteristics, hyperelastic models, uniaxial tension testing, FEA modeling