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Numerical Analysis of Large Deflections of a Flat Textile Structure with Variable Bending Rigidity and Verification of Results Using Fem Simulation

Szablewski Piotr

Autex Research Journal

2021

Vol. 21, no. 1

108--114

The paper presents the numerical modeling of large deflections of a flat textile structure subjected to a constant force acting on the free end. It was assumed that the examined structure is inextensible. The effect of the structure's own weight was also taken into account. In order to solve the problem, the flat textile structure was modeled using the heavy elastica theory. An important element of the analysis involves taking into account the variable bending rigidity of the examined textile structure along its length, which is often found in this type of products. The function of variable bending rigidity was assumed in advance. Numerical calculations were carried out in the Mathematica environment using the shooting method for the boundary value problem. The obtained results were verified using the finite element method.

Theoretical Model of the Influence of Textile Structure on Wetting Hysteresis

Bachurová M., Wiener J.

Fibres & Textiles in Eastern Europe

2013

Vol. 21, no. 2 (98)

80--83

In our work we theoretically analysed the influence of textile structure on the hysteresis of wetting. The situation with current fabrics is complicated and the properties of fibers, yarns, and geometric arrangement also influence their wetting. The basis of the theoretical model is a simple plain weave fabric made from monofilaments. From this model we determined the real contact angle and apparent contact angle, and later we compared these values with results from the experimental measurement.

W pracy przeanalizowano pod względem teoretycznym wpływ struktury tkaniny na histerezę zwilżania. Właściwości włókien, przędz i układ geometryczny mają wpływ na zwilżanie tkanin. Podstawą modelu teoretycznego jest tkanina o splocie prostym wykonana z monofilamentów. Wyznaczono rzeczywisty i pozorny kąt zwilżania, a następnie porównano otrzymane wartości z wynikami pomiarów eksperymentalnych.