Modeling the tensile behaviour of needle punched nonwoven geotextiles
International Journal of Clothing Science and Technology
ISSN: 0955-6222
Article publication date: 9 August 2011
Abstract
Purpose
The purpose of this paper is to propose a theoretical model to predict the mechanical behaviour of needle punched heavy geotextiles in uniaxial tensile test.
Design/methodology/approach
The model was constructed using theory of layered composite materials and finite element method. The properties of a reference fabric were used as initial data in theoretical calculations and a commercially available finite element program was chosen to carry out stress analysis. A comparison is made between theoretical calculations and experimental data to evaluate the deformation mechanism of geotextile fabrics in uniaxial tensile test.
Findings
The results indicate that compatible data were predicted in terms of stress values and stress distribution of fabrics. The inconstant lateral contraction of nonwoven fabrics in tensile test is also successfully simulated by the model. However, in the case of elongations, the model could not predict the strains of heavy geotextiles accurately.
Originality/value
The study aims at predicting the mechanical behaviour of needle punched heavy geotextiles by using the structural and mechanical properties of a “reference fabric” instead of constituent fiber properties.
Keywords
Citation
Halis Erdogan, U. and Erdem, N. (2011), "Modeling the tensile behaviour of needle punched nonwoven geotextiles", International Journal of Clothing Science and Technology, Vol. 23 No. 4, pp. 258-268. https://doi.org/10.1108/09556221111136520
Publisher
:Emerald Group Publishing Limited
Copyright © 2011, Emerald Group Publishing Limited