Behavior of laminated shell composite with imperfect contact between the layers

David Guinovart-Sanjuán, Raffaella Rizzoni, Reinaldo Rodríguez-Ramos, Raúl Guinovart-Díaz, Julián Bravo-Castillero, Ransés Alfonso-Rodríguez, Frederic Lebon, Serge Dumont, Igor Sevostianov, Federico J. Sabina

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)539-546
Number of pages8
JournalComposite Structures
Volume176
DOIs
StatePublished - Sep 15 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Ltd

Keywords

  • Asymptotic homogenization
  • Composite
  • Effective elastic properties
  • Spherical assemblage model
  • Spherical shell laminated

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