Dynamics of contrasted stratified elastic and viscoelastic plates - application to laminated glass
نویسندگان
چکیده
This article deals with the dynamic behavior of highly contrasted stratified (HCS) plate made elastic or visco-elastic, symmetric non-symmetric, layers. Such composite structures may correspond to laminates plates sandwich panels often use in engineering. The study is based on synthetic analytical HCS model derived by asymptotic approach (Boutin and Viverge 2016). physical mechanisms within are taken into account additional kinematic descriptor constituted internal sliding a bi-torsor formulation. first part focuses plates. After describing three types bending waves, providing simple assessment their parameters through Padé approximant, expression harmonic Green’s function established. classical tools modal analysis extended such paying attention appropriate boundary conditions. second shows that these findings apply visco-elastic constituents provided they expressed Fourier domain. enables determine energy loss due viscous dissipation. case thermo-sensible interlayer also investigated influence temperature accurately figure out. As specific example, laminated glass PVB considered. damping waves assessed, procedure perform “quasi"-exact detailed effect eigen modes, terms frequency damping, quantified. Finally, vibrational experiments performed at different temperatures shown be good agreement theoretical modeling.
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ژورنال
عنوان ژورنال: Composites Part B-engineering
سال: 2021
ISSN: ['1879-1069', '1359-8368']
DOI: https://doi.org/10.1016/j.compositesb.2020.108551