engleski

Influence kinds of materials on the Poisson’s ratio of woven fabrics

Poisson's ratio is one of the fundamental properties of any structural material including woven fabrics and textile materials. This coefficient determines important mechanical characteristics of fabrics in many applications, including a variety of composite systems containing textiles as a structural element. Due to the anisotropy of woven fabrics, Poisson's ratio changes over the fabric sample stretching. In this paper the practical application of uniaxial testing of woven fabrics for determining its breaking properties and Poisson's ratio is presented. Experimental testing were carried out on two different fabrics of different raw material composition (cotton, wool) and of the same weave (plain weave). Samples are stretched with tensile force in the weft and warp direction, and based on different measured values of fabric stretching, warp and weft Poisson's ratio is calculated. The influence of raw material composition on the values of the Poisson's ratio was investigated.

woven fabric, Poisson’s ratio, warp, weft, anisotropy, elongation at break

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