Analytical evaluation of the influence of adding rubber layers on free vibration of sandwich structure with presence of nano-reinforced composite skins

• Autorzy: Al-Shablle M. , Al-Waily M. , Njim E.K.

Identyfikatory

DOI

10.5604/01.3001.0016.1190

• Języki publikacji: EN

Abstrakty

EN

Purpose: Developing structural designs that offer superior vibration properties is still a major challenge, but they stay solid and lightweight simultaneously. Composite faces are frequently used in insulating constructions as an alternative to sheet metal roofs. Rubber overlays have been added to reduce waves' natural frequency and fade time. Design/methodology/approach: The mechanical properties and the natural frequency calculation of the materials that make up the composite structural panels designed for structural applications with the addition of rubber layers were studied in this study. Findings: The results showed the addition of rubber layers with SiO2 nanoparticles with a density of 1180 kg m3, and the optimal decrease (VF = 2.5%) is 38.5% in the natural frequency while at a density of 1210 kg/m3, it is 40.2% in the natural frequency. While the addition of rubber layers with Al2O3 nanoparticles shows a density of 1180 kg/m3, the optimum reduction (VF = 2.5%) is 41% in HF while at a density of 1210 kg/m3 36.8% in an NF 41% during a density of 1210 kg/m3 38.4%. Research limitations/implications: Certain hypotheses were used to apply Kirchhoff's theory to solve the mathematical model of the structure. Practical implications: The work was carried out on the faces of nanocomposites made of SiO2/epoxy and Al2O3/epoxy with different densities and polylactic acid core. The inclusion of nanoparticles as a percentage of the fraction size ranges from 0% to 2.50%. Originality/value: This study's results shed light on the fundamental behaviour of the components that make up the sandwich in the presence of rubber layers.

Słowa kluczowe

EN

sandwich panel; analytical solution; composite-face; nanoparticles; rubber layer

PL

panel warstwowy; rozwiązanie analityczne; kompozyt-powierzchnia; nanocząsteczki; warstwa gumy

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2022
• Tom: Vol. 116, nr 2
• Strony: 57--70
• Opis fizyczny: Bibliogr. 75 poz.

Twórcy

autor

Al-Shablle M.

• Department of Mechanical Engineering, Faculty of Engineering, University of Kufa, Iraq

autor

Al-Waily M.

• Department of Mechanical Engineering, Faculty of Engineering, University of Kufa, Iraq

• https://orcid.org/0000-0002-7630-1980

autor

Njim E.K.

• Ministry of Industry and Minerals, State Company for Rubber and Tires Industries, Iraq

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).