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Dynamic properties of sandwich beams with MWNT/polymer nanocomposites as core materials
The dynamic properties of sandwich beams with MWNT/polymer nanocomposites as core materials were investigated. The faces of sandwich beams are graphite/epoxy laminates. Epoxy and phenolic resins served as a matrix material, and multi-walled carbon nanotubes (MWNTs) provided reinforcement of the fabricated MWNT/polymer nanocomposites as core materials for sandwich beams. The frequency responses of sandwich beams under excitation were measured experimentally with a signal analyzer; the half-power method was used to find the loss factors of the sandwich beams for each mode. The finite element method was used for free vibration analysis of the sandwich beams; the natural frequencies and mode shapes of the sandwich beams were calculated numerically. The numerical and experimental results agreed satisfactorily.
Dynamic properties of sandwich beams with MWNT/polymer nanocomposites as core materials
The dynamic properties of sandwich beams with MWNT/polymer nanocomposites as core materials were investigated. The faces of sandwich beams are graphite/epoxy laminates. Epoxy and phenolic resins served as a matrix material, and multi-walled carbon nanotubes (MWNTs) provided reinforcement of the fabricated MWNT/polymer nanocomposites as core materials for sandwich beams. The frequency responses of sandwich beams under excitation were measured experimentally with a signal analyzer; the half-power method was used to find the loss factors of the sandwich beams for each mode. The finite element method was used for free vibration analysis of the sandwich beams; the natural frequencies and mode shapes of the sandwich beams were calculated numerically. The numerical and experimental results agreed satisfactorily.
Dynamic properties of sandwich beams with MWNT/polymer nanocomposites as core materials
Yeh, Meng-Kao (author) / Hsieh, Tsung-Han (author)
2008
7 Seiten, 9 Bilder, 20 Quellen
Conference paper
English
Antwortzeit , carbonfaserverstärkter Kunststoff , Dämpfungsverhalten , Epoxidharz , Finite-Elemente-Methode , Frequenzabhängigkeit , Herstellung verstärkter Kunststoffe , mechanische Schwingung , mehrwandiges Kohlenstoffnanoröhrchen , Nanoverbundwerkstoff , numerische Analyse , Phenolharz , Polymermatrix-Verbundwerkstoff , Sandwich-Bauweise , Schwingungsanalyse , Theorie-Experiment-Vergleich , Thermoplast , Träger (Bauwesen) , Verlustfaktor
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