Original scientific paper

Knitted fabrics potential energy of deformation during one load / unload cycle

Željko Penava ; University of Zagreb Faculty of Textile Technology, Zagreb, Croatia *
Diana Šimić Penava ; University of Zagreb Faculty of Civil Engineering, Zagreb, Croatia
Tea Jovanović ; University of Zagreb Faculty of Textile Technology, Zagreb, Croatia

* Corresponding author.

Abstract

The aim of this paper is to analyze the force/elongation diagram of a knitted fabrics loaded in the row’s direction, and then in the walle direction, and to define a common characteristic point at a certain elongation until the knitted fabric sample breaks. Then carry out a test with one load/unload cycle and determine the potential energy of the knitted fabric for different yarn count. Smooth tubular knitted fabrics for fine women's socks made of polyamide microfilament yarns with a nominal yarn count of 20, 33, 40 and 60 tex were used for the test. Knitted fabric samples are cut in the row direction and in the walle direction. Tests were performed on fabric samples that were fixed in two parallel clamps that were placed in a tensile tester. The knitted fabric samples are first exposed to an axial force acting in the row direction and in the walle direction until they break, and then the knitted fabric samples are exposed to one loading/unloading cycle until the relative elongation ε=200% in the row direction and ε=200% in the walle direction. The obtained results were used to calculate the potential energy and how the nominal yarn count affects the potential energy values for different directions of force action.

Keywords

axial load; potential energy of deformations; knitted fabric; yarn count

Hrčak ID:

347535

URI

https://hrcak.srce.hr/347535

Publication date:

10.11.2025.

Article data in other languages: croatian

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