Temat: panel warstwowy - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Numerical simulations of structural behavior of sandwich panels subjected to concentrated static loads
Autorzy:: Pozorska, J.
Pozorski, Z.
Janik, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/122579.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: sandwich panels
concentrated loads
numerical simulations
local effects
effective width method
panel warstwowy
symulacje numeryczne
panel dachowy
panel ścienny
Opis:: The paper presents numerical simulations of the behavior of sandwich panels loaded by static concentrated force. Two model classes (2D and 3D) are considered, and the results are compared with the effective width method. The comparison mainly concerns the displacements and stresses in the facings. The obtained results indicate the areas of conformity between the models but also show significant differences between them. The observed local effects are discussed and the surprising location of extreme stress in the facings is demonstrated.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2017, 16, 2; 113-121
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: 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.
Powiązania:: https://bibliotekanauki.pl/articles/24200573.pdf
Data publikacji:: 2022
Wydawca:: Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:: sandwich panel
analytical solution
composite-face
nanoparticles
rubber layer
panel warstwowy
rozwiązanie analityczne
kompozyt-powierzchnia
nanocząsteczki
warstwa gumy
Opis:: 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.
Źródło:: Archives of Materials Science and Engineering; 2022, 116, 2; 57--70
1897-2764
Pojawia się w:: Archives of Materials Science and Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Elastic buckling of a generalized cylindrical sandwich panel under axial compression
Autorzy:: Magnucki, Krzysztof
Magnucka, Ewa
Wittenbeck, Leszek
Powiązania:: https://bibliotekanauki.pl/articles/2204534.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: cylindrical sandwich panel
rectangular sandwich plate
elastic buckling
panel warstwowy cylindryczny
płyta warstwowa prostokątna
płyta typu sandwich prostokątna
wyboczenie elastyczne
Opis:: The paper is devoted to buckling problem of an axially compressed generalized cylindrical sandwich panel and rectangular sandwich plate. The continuous variation of mechanical properties in thickness direction of the structures is assumed. The generalized theory of deformation of the straight line normal to the neutral surface is applied. The analytical model of this sandwich panel is elaborated. Three differential equations of equilibrium of this panel based on the principle of stationary potential energy are obtained. This system of equations is analytically solved and the critical load is derived. Moreover, the limit transformation of the sandwich panel to a sandwich rectangular plate is presented. The critical loads of the example cylindrical panels and rectangular plates are derived.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2023, 71, 2; art. no. e144623
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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