Empirical Analysis of the Impact Strength of Textile Knitted Barrier Meshes

• Autorzy: Mikołajczyk, Zbigniew , Szałek, Beata , Pieklak, Katarzyna
• Języki publikacji: EN

Abstrakty

EN

The assumptions of instrumental methodology for measuring dynamic loads of knitted barrier meshes were defined. A test stand was built, original in terms of both mechanical construction and electronic measuring system, connected to a computer data analysis system. Maximum values of dynamic forces in the mesh fastening strings were determined. The correctness of the strain gauges construction and measurement data transmission systems was confirmed. Tests of multidirectional resistance to dynamic loads in the mesh fastening strings were carried out. The experiment involved dropping a ball with a mass of 5 kg and a diameter of 10 cm, from a height of 1 m and 2 m onto the mesh surface. The potential impact energy equaled Ep1 = 49.05 J and Ep2 = 98.1 J. The tests showed that the highest force values were observed for meshes with square-shaped a-jour structure, and for mesh with diamond-shaped a-jour geometry the force values were lower. A symmetrical forces distribution was observed in all the strings. The highest forces were recorded in the middle strings and the lowest in the outer ones. The conducted tests confirmed the correctness of the adopted constructional solutions of test stand for identification of dynamic stress distribution in mesh fastening strings. The developed method is a useful verification tool for numerical analysis of mechanical properties of barrier meshes.

Słowa kluczowe

PL

siatka barierowa dziana; metody pomiaru; naprężenia w siatkach; stanowisko badawcze siatek; symulacja komputerowa

EN

knitted barrier meshes; measurement methods; stressess in meshes; test stand of meshes; computer simulation

• Czasopismo: Autex Research Journal
• Rocznik: 2021
• Tom: Vol. 21, no. 4
• Strony: 363--378
• Opis fizyczny: Bibliogr. 31 poz.

Twórcy

autor

Mikołajczyk, Zbigniew

• Lodz University of Technology, Faculty of Material Technologies and Textile Design, Department of Knitting Technology and Textile Machines, Lodz, Poland, tel.: [phone],,

autor

Szałek, Beata

• Department of Functional Materials, Łukasiewicz Research Network – Institute of Leather Industry, Lodz, Poland, tel.: [phone],

autor

Pieklak, Katarzyna

• Lodz University of Technology, Faculty of Material Technologies and Textile Design, Department of Knitting Technology and Textile Machines, Lodz, Poland, tel.: [phone],

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).

Identyfikatory

DOI

10.2478/aut-2020-0030