Determination of the Elastic Constants of Plain Woven Fabrics by a Tensile Test in Various Directions

• Autorzy: Penava Ž. , Šimić-Penava D , Knezic Ž

Warianty tytułu

PL

Wyznaczanie stałych elastyczności tkanin o splocie płóciennym korzystając z testów rozciągania w różnych kierunkach

• Języki publikacji: EN

Abstrakty

EN

In this paper the values of elastic constants of woven fabrics for different angles of extension direction were analysed. Four types of fabric samples of different raw material composition and the same type of weave were tested under tensile forces in seven directions oriented with a 15° increment with respect to the weft direction. The elasticity modulus and Poisson’s ratio of the woven fabrics were determined experimentally in a laboratory. Based on the experimentally obtained values, theoretically calculated elastic constants for arbitrarily chosen fabric directions were calculated. A good agreement between the experimental results and values of the elastic constants calculated was shown, hence the theoretical equations can be used with high accuracy to calculate the elastic constants of fabric in various directions. Therefore the measurements need to be undertaken when the tensile force is acting on the fabric only in the warp, weft and at an angle of 45°.

PL

W pracy przeanalizowano stałe elastyczności tkanin rozciąganych pod różnymi kątami. Badano próbki wykonane z różnych materiałów ale o tym samym splocie. Próbki rozciągano w kierunkach o przesunięciu co 150 licząc od kierunku wątku. Badano moduł elastyczności i współczynnik Poissona. Testy przeprowadzono w warunkach laboratoryjnych. Korzystając z wyników eksperymentów przeprowadzono teoretyczne obliczenia stałych elastyczności dla wybranych kierunków rozciągania. Stwierdzono dobrą zgodność wyników, dzięki czemu można wyciągnąć wniosek, że zastosowane wzory mogą służyć do obliczeń stałych elastyczności z dużą dokładnością. Dlatego pomiary takie powinny być przeprowadzane jeżeli siły rozciągające tkaninę działają tylko w kierunku osnowy, wątku i pod kątem 45 stopni.

Słowa kluczowe

EN

woven fabric; anisotropic; modulus of elasticity; Poisson’s ratio; elastic constants

PL

tkaniny; anizotropowość; moduł sprężystości; współczynnik Poissona; elastyczność tkanin; obliczenia stałych elastyczności

• Wydawca: Sieć Badawcza Łukasiewicz - Łódzki Instytut Technologiczny
• Czasopismo: Fibres & Textiles in Eastern Europe
• Rocznik: 2014
• Tom: Vol. 22, no. 2 (104)
• Strony: 57--63
• Opis fizyczny: Bibliogr. 26 poz., rys., wykr., tab.

Twórcy

autor

Penava Ž.

• Croatia, Zagreb, University of Zagreb, Faculty of Textile Technology, Department of Textile Design and Management

autor

Šimić-Penava D

• Croatia, Zagreb, University of Zagreb, Faculty of Civil Engineering, Department of Engineering Mechanics

autor

Knezic Ž

• Croatia, Zagreb, University of Zagreb, Faculty of Textile Technology, Department of Textile Design and Management

Bibliografia

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