Modal analysis of honeycomb panels and the influence of boundary conditions on the calculation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46709002%3A_____%2F14%3A%230000790" target="_blank" >RIV/46709002:_____/14:#0000790 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Modal analysis of honeycomb panels and the influence of boundary conditions on the calculation
Original language description
The investigation of the behaviour of rectangular shaped sandwich specimens is focused on the modal analysis and the experimental determination of the samples damping properties. Panels are made by unique technique of dry lamination patented by Czech company 5M s.r.o. The Hexagonal cell honeycomb core is made of aluminium as well as the facesheets. The influence of the main directions of anisotropy and the different panel?s thicknesses on the natural frequencies are investigated. The results of experiments are compared with the theoretical calculations and finite element method (FEM) simulation results. Theories used for the calculations are the First-order shear deformation theory (FSDT) and the Reddy?s third-order shear deformation theory (TSDT). FEMmodel had mapped mesh with 20-nodes brick elements. The results we got from FEA were closest to the experimentally measured data, but still with a deviation. The main reason of different results are geometrical irregularities. While FEM
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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