Title
Numerical Analysis of an Auxetic Anti-tetrachiral Sandwich Panel Subjected to Steady-state Harmonic Base Motion
Authors
[ 1 ] Instytut Mechaniki Stosowanej, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ D ] phd student | [ P ] employee
Scientific discipline (Law 2.0)
Year of publication
2022
Published in
Article type
scientific article
Publication language
english
Keywords
EN
- steady-state dynamics
- auxetic
- sandwich panel
- base motion
- finite element analysis
Abstract
EN In this paper, the authors show the results of numerical simulations representing the test of an aluminum sandwich panel with an auxetic anti-tetrachiral core on an exciter. Steady-state vibration analyses utilizing modal superposition (linear dynamics) were performed. The bottom of the panel had all the degrees of freedom constrained and excitation in form of base acceleration in the vertical direction was applied. The obtained results were in form of contour plots of selected output variables in the frequency domain. In addition, curves showing the variation of acceleration, velocity and displacement of a selected representative point in frequency were generated. The results were compared with those obtained for the panel with a non-auxetic core, in the form of a standard hexagonal honeycomb. It was found that the auxetic panel is not superior in the whole range of frequencies but a workflow useful in the design of sandwich panels for operating conditions involving vibrations was developed.
Pages (from - to)
2022323-1 - 2022323-8
License type
CC BY (attribution alone)
Open Access Mode
open journal
Open Access Text Version
final published version
Date of Open Access to the publication
at the time of publication
Ministry points / journal
70
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