Modeling of general laminate composite structures with viscoelastic layer
Keywords:Asymptotic analysis, Bending (deformation), Composite structures, Damping, Mathematical models, Sandwich structures, Viscoelasticity, Audible frequency range, Reissner-Mindlin displacement field, Transverse shearing
AbstractThe modeling of a thick composite laminate plates and beams with linear viscoelastic damping is described. The problem is solved by discrete laminate method in a wave approach context. The discrete laminate approach assumes each layer described by a Reissner-Mindlin displacement field, which leads to equilibrium relations accounting for membrane, transverse shearing, bending and full inertial terms. The discrete description of each layer allows for accurate handling of thin/thick laminates and sandwich panels over the audible frequency range. The model is also applied to the calculation of the structural loss factor associated to the bending wave-type. The pure arithmetically real solution with the highest amplitude corresponds to the bending wavenumber. This solution has three asymptotical behaviors for sandwich configurations, which are pure bending at low frequencies, core's transversal shearing at mid-frequencies and pure bending of skins at high frequencies.
How to Cite
Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i) to publish, reproduce, distribute, display and store the Contribution;
ii) to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii) to exploit all subsidiary rights in the Contribution,
iv) to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v) to licence any third party to do any or all of the above.