Experimental and numerical evaluation of viscoelastic sandwich beams
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 appli...
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| Format: | Article |
| Language: | English |
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Fundação Gorceix
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| Series: | REM: International Engineering Journal |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2017000300281&lng=en&tlng=en |
| _version_ | 1818236742650560512 |
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| author | Waldir Neme Felippe Filho Flávio de Souza Barbosa Ney Roitman Carlos Magluta Flávia Carolina Borges |
| author_facet | Waldir Neme Felippe Filho Flávio de Souza Barbosa Ney Roitman Carlos Magluta Flávia Carolina Borges |
| author_sort | Waldir Neme Felippe Filho |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-12T12:14:42Z |
| format | Article |
| id | doaj.art-31210d22585d404c915d956d25cac146 |
| institution | Directory Open Access Journal |
| issn | 2448-167X |
| language | English |
| last_indexed | 2024-12-12T12:14:42Z |
| publisher | Fundação Gorceix |
| record_format | Article |
| series | REM: International Engineering Journal |
| spelling | doaj.art-31210d22585d404c915d956d25cac1462022-12-22T00:24:47ZengFundação GorceixREM: International Engineering Journal2448-167X70328128710.1590/0370-44672013700015S2448-167X2017000300281Experimental and numerical evaluation of viscoelastic sandwich beamsWaldir Neme Felippe FilhoFlávio de Souza BarbosaNey RoitmanCarlos MaglutaFlávia Carolina BorgesAbstract 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2017000300281&lng=en&tlng=ensandwich structureviscoelasticityGHM model |
| spellingShingle | Waldir Neme Felippe Filho Flávio de Souza Barbosa Ney Roitman Carlos Magluta Flávia Carolina Borges Experimental and numerical evaluation of viscoelastic sandwich beams REM: International Engineering Journal sandwich structure viscoelasticity GHM model |
| title | Experimental and numerical evaluation of viscoelastic sandwich beams |
| title_full | Experimental and numerical evaluation of viscoelastic sandwich beams |
| title_fullStr | Experimental and numerical evaluation of viscoelastic sandwich beams |
| title_full_unstemmed | Experimental and numerical evaluation of viscoelastic sandwich beams |
| title_short | Experimental and numerical evaluation of viscoelastic sandwich beams |
| title_sort | experimental and numerical evaluation of viscoelastic sandwich beams |
| topic | sandwich structure viscoelasticity GHM model |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2017000300281&lng=en&tlng=en |
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