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EnglishThe paper focuses on the calculation of the effective elastic properties of a laminated composite shell with imperfect contact between the layers. To achieve this goal, first the two-scale asymptotic homogenization method (AHM) is applied to derive the solutions for the local problems and to obtain the effective elastic properties of a two-layer spherical shell with imperfect contact between the layers. The results are compared with the numerical solution obtained by finite elements method (FEM). The limit case of a laminate shell composite with perfect contact at the interface is recovered. Second, the elastic properties of a spherical heterogeneous structure with isotropic periodic microstructure and imperfect contact is analyzed with the spherical assemblage model (SAM). The homogenized equilibrium equation for a spherical composite is solved using AHM and the results are compared with the exact analytical solution obtained with SAM.
| Data di pubblicazione: | 2017 | |
| Titolo: | Behavior of laminated shell composite with imperfect contact between the layers | |
| Autori: | Guinovart Sanjuán, David; Rizzoni, Raffaella; Rodríguez Ramos, Reinaldo; Guinovart Díaz, Raúl; Bravo Castillero, Julián; Alfonso Rodríguez, Ransés; Lebon, Frederic; Dumont, Serge; Sevostianov, Igor; Sabina, Federico J. | |
| Rivista: | COMPOSITE STRUCTURES | |
| Keywords: | Effective elastic properties, Spherical shell laminated, Composite, Asymptotic homogenization, Spherical assemblage model | |
| Abstract in inglese: | The paper focuses on the calculation of the effective elastic properties of a laminated composite shell with imperfect contact between the layers. To achieve this goal, first the two-scale asymptotic homogenization method (AHM) is applied to derive the solutions for the local problems and to obtain the effective elastic properties of a two-layer spherical shell with imperfect contact between the layers. The results are compared with the numerical solution obtained by finite elements method (FEM). The limit case of a laminate shell composite with perfect contact at the interface is recovered. Second, the elastic properties of a spherical heterogeneous structure with isotropic periodic microstructure and imperfect contact is analyzed with the spherical assemblage model (SAM). The homogenized equilibrium equation for a spherical composite is solved using AHM and the results are compared with the exact analytical solution obtained with SAM. | |
| Digital Object Identifier (DOI): | 10.1016/j.compstruct.2017.05.058 | |
| Handle: | http://hdl.handle.net/11392/2371788 | |
| Appare nelle tipologie: | 03.1 Articolo su rivista |
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| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| COST_2016_1453_Original_V0 (1).pdf | Pre-print |  | Open Access Visualizza/Apri | |
| behavior of laminated shell composie with imperfect contact between the layers.2017.pdf | Full text (versione editoriale) | NON PUBBLICO - Accesso privato/ristretto | Administrator Richiedi una copia |
http://hdl.handle.net/11392/2371788
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