Harmonic response computation of viscoelastic multilayered structures using a ZPST shell element

Authors:
Jean-Daniel Chazot;Benoit Nennig;Ameur Chettah
Affiliations:
Université de Technologie de Compiègne, Laboratoire Roberval UMR 6253, BP 20529, 60205 Compiègne cedex, France;Université de Technologie de Compiègne, Laboratoire Roberval UMR 6253, BP 20529, 60205 Compiègne cedex, France and LAUM, UMR6613 CNRS, Université du Maine, Ave. Olivier Messiae ...;Université de Technologie de Compiègne, Laboratoire Roberval UMR 6253, BP 20529, 60205 Compiègne cedex, France and BATir, ULB, 87 Avenue Buyl, B-1050 Bruxelles, Belgium
Venue:
Computers and Structures
Year:
2011

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Abstract

This paper uses the ZPST multilayered shell element developed by Sulmoni et al. to compute the dynamic response of multilayered viscoelastic structures such as windscreens or car bodyworks. It is based on the P-order shear deformation theory with an added zigzag function. The viscoelastic properties are taken into account with frequency dependent elastic moduli measured with a Dynamic Mechanical Thermal Analyzer. A method based on Pade approximant is also used to reduce the computation time. This acceleration technique enables to achieve fast frequency sweep computations compared to a standard direct method. Finally, validations are made on plates and cylindrical geometries.