Damping Properties and Density of Helmet Liners Made of Expanded Polystyrene (EPS)

• Autorzy: Trzaskalska M. , Chwastek R.

Identyfikatory

DOI

10.24425/amm.2021.135864

• Języki publikacji: EN

Abstrakty

EN

The purpose of the work was to determine the infuence of the bulk density ρ_z of granules, processing parameters and the density of ski inserts ρ_w made of expanded polystyrene (EPS) on their damping properties. For this aim liners for ski helmets with 3 different bulk densities were made. Sintering time and sintering pressure were also changed. The percentage damping factor η was determined on the basis of the results obtained in the rebound resilience test. Based on the analysis of the obtained data, it was found that increasing the density of EPS pads ρ_w increases their damping properties and at the same time contributes to a decrease in elasticity, increase in hardness and brittleness of EPS products.

Słowa kluczowe

EN

expanded PS; ski liners; PS foams; damping factor; bulk density

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2021
• Tom: Vol. 66, iss. 1
• Strony: 339--344
• Opis fizyczny: Bibliogr. 36 poz., fot., rys., tab., wykr., wzory

Twórcy

autor

Trzaskalska M.

• Czestochowa University of Technology, Faculty of Mechanical Engineering and Computer Science, Department of Technology and Automation, 21 Armii Krajowej Av., 42-201 Częstochowa, Poland

autor

Chwastek R.

• Czestochowa University of Technology, Faculty of Mechanical Engineering and Computer Science, Department of Technology and Automation, 21 Armii Krajowej Av., 42-201 Częstochowa, Poland

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).