Comparisons of Numerical and Experimental Evaluations of Viscoelastic Sandwich Beams

Waldir F. Filho, Flávio S. Barbosa


The application of Viscoelastic Materials (VEM) as a passive or semi-active damping treatment has been shown as a good damping strategy. In order to design these damping treatments on actual problems, one should analyze at least two phases: firstly to estimate the mechanical properties of the applied VEM; and, secondly, to simulate the structural behavior by means of numerical and/or experimental tests.
In this paper, the results of two time domain based VEM numerical models are compared with experimental counterpart available in literature. Initially, the dynamic properties of the used VEMs are analyzed and, subsequently, the dissipative characteristics of this passive structural control are also evaluated.

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