{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T03:14:51Z","timestamp":1777864491598,"version":"3.51.4"},"reference-count":12,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2009,6,24]],"date-time":"2009-06-24T00:00:00Z","timestamp":1245801600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Jnl of Sandwich Structures &amp; Materials"],"published-print":{"date-parts":[[2010,7]]},"abstract":"<jats:p>The remarkable damping over a broad temperature range and thermal insulation properties of cork make it a suitable material to be applied on integrated and surface damping treatments in sandwich structures, improving its dynamic behavior. Experimental analysis and numerical modeling of sandwich structures with cork compound layers is therefore essential for a better understanding of the cork compound influence on the dynamic properties of a layered structure. In this article, an evaluation study on the dynamic properties of a set of sandwich plates with cork compound cores inside two aluminium faces is performed. For this purpose, three test samples were assembled following the described configuration, using cork compounds with different properties (density, granulometry and thickness). To numerically simulate these layered plates, a partial layerwise plate finite element (FE), with a multilayer configuration, was developed and integrated in a MATLAB FE code. The constitutive relation of the cork compounds is included in the FE model by using the material complex modulus in a direct frequency analysis procedure. For the different cork compounds hereby considered, the extensional complex modulus was previously identified by using a specific experimental methodology which simulates a semidefinite two degrees of freedom system, where the cork compound test sample represents the complex stiffness. From the complex modulus data, both extensional storage modulus and loss factor of the cork compound were obtained. The experimental evaluation of the dynamic properties of the sandwich plates was performed carrying out an experimental modal analysis on each test specimen, being measured a set of frequency response functions (FRFs). Additionally, the developed layerwise plate element was validated through the comparison between the measured driving point FRFs and the FE method predicted ones.<\/jats:p>","DOI":"10.1177\/1099636209104538","type":"journal-article","created":{"date-parts":[[2009,6,24]],"date-time":"2009-06-24T20:45:07Z","timestamp":1245876307000},"page":"495-515","source":"Crossref","is-referenced-by-count":23,"title":["Application of Cork Compounds in Sandwich Structures for Vibration Damping"],"prefix":"10.1177","volume":"12","author":[{"given":"J.","family":"Santos Silva","sequence":"first","affiliation":[{"name":"Faculdade de Engenharia da Universidade do Porto (FEUP), Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"}]},{"given":"J.","family":"Dias Rodrigues","sequence":"additional","affiliation":[{"name":"Faculdade de Engenharia da Universidade do Porto (FEUP), Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal,"}]},{"given":"R.A.S.","family":"Moreira","sequence":"additional","affiliation":[{"name":"Departamento de Engenharia Mec\u00e2nica, Universidade de Aveiro (UA), Campus de Santiago, 3810-193 Aveiro, Portugal"}]}],"member":"179","published-online":{"date-parts":[[2009,6,24]]},"reference":[{"key":"atypb1","volume-title":"A Corti\u00e7a","author":"Fortes, M.A.","year":"2004"},{"key":"atypb2","volume-title":"Mechanics of Laminated Composite Plates: Theory and Analysis","author":"Reddy, J.N.","year":"1997"},{"key":"atypb3","doi-asserted-by":"publisher","DOI":"10.1007\/s00466-005-0714-1"},{"key":"atypb4","doi-asserted-by":"publisher","DOI":"10.1016\/j.compstruc.2006.01.020"},{"key":"atypb5","doi-asserted-by":"publisher","DOI":"10.1023\/A:1013635809035"},{"key":"atypb6","first-page":"345","author":"Astm, D4092-908.","year":"1990","journal-title":"Annual Book of ASTM Standards"},{"key":"atypb7","volume-title":"Handbook of Viscoelastic Vibration Damping","author":"Jones, D.I.G.","year":"2001"},{"key":"atypb8","author":"Allen, B.R.","year":"1996","journal-title":"Proceedings of 3th Smart Structures and Materials"},{"key":"atypb9","volume-title":"II ECCOMAS Thematic Conference on Smart Structures and Materials","author":"Moreira, R.A.S."},{"key":"atypb10","doi-asserted-by":"publisher","DOI":"10.1177\/1077546304039060"},{"key":"atypb11","doi-asserted-by":"publisher","DOI":"10.1108\/eb023562"},{"key":"atypb12","volume-title":"Proceedings of the International Conference on Engineering Dynamics","author":"Vasques, C.M.A."}],"container-title":["Journal of Sandwich Structures &amp; Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/1099636209104538","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/1099636209104538","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T05:42:47Z","timestamp":1777527767000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/1099636209104538"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,6,24]]},"references-count":12,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2010,7]]}},"alternative-id":["10.1177\/1099636209104538"],"URL":"https:\/\/doi.org\/10.1177\/1099636209104538","relation":{},"ISSN":["1099-6362","1530-7972"],"issn-type":[{"value":"1099-6362","type":"print"},{"value":"1530-7972","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,6,24]]}}}