Technical textiles are widely used in different industrial fields for applications like screen printing and filtration. In order to predict the mechanical response of textile structural components, the knowledge of the textile mechanical features is indispensable in the design and the development activities. The prediction of the mechanical properties of textiles has been item of several researchers by different approaches. In particular the investigations can be grouped in three main methodologies: experimental (see e.g. [
]), analytical (see e.g. [
]) and numerical (see e.g. [
This paper presents a numerical approach based on two scale modelling. The first scale deals with the prediction of the mechanical behaviour of the plane weave monofilament textile by the numerical analysis of a Representative Volume (RV size of the order 10-5 m) assuming a regular distribution of the fibres in the warp and weft directions (Figure 1a). In the second scale modelling the numerical analysis of the entire textile component (size of the order 1m) is performed employing the homogenized textile mechanical behaviour obtained in the first step. The first scale analysis (textile scale) is validated by experimental results including uniaxial and biaxial tensile tests.
The second scale analyses deals with a cylindrical component employed in a screen printing technique (Figure 1b). Different configurations of the cylinder are considered in order to understand the influence of the textile and the geometric parameters on the deformed shape (i.e. the print quality).
(a) First scale modelling, analysis of the RV. (b) Second scale modelling, analysis of the structural component.