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Type: Artigo de Periódico
Title: Experimental and numerical evaluation of viscoelastic sandwich beams
Author: Felippe Filho, Waldir Neme
Barbosa, Flávio de Souza
Roitman, Ney
Magluta, Carlos
Borges, Flávia Carolina
Resumo: -
Abstract: Viscoelastic materials can dissipate a large amount of energy when subjected to cyclic shear deformations, but they have low bearing capacity. Therefore they are often employed as a damping layer in sandwich structures. These sandwich structures present a high damping ratio and simple application. In order to design sandwich structures, many aspects ranging from computer modeling to laboratory testing should be considered. In this study, a test set of experiments were performed and results are compared with a numerical GHM (Golla, Hughes and Mc Tavish method) based model, in order to establish a method to support viscoelastic sandwich beam design. In this way, starting from the dynamic properties of a viscoelastic material, a numerical model is used to evaluate the behavior of these structures. Comparisons with uncontrolled structures are also presented, showing the dissipative characteristics of this passive control.
Keywords: Sandwich structure
GHM model
CNPq: -
Language: eng
Country: Brasil
Publisher: -
Institution Initials: -
Access Type: Acesso Aberto
Issue Date: Jul-2017
Appears in Collections:Artigos de Periódicos

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