Analysis of effective elastic properties for shell with complex geometrical shapes

David Guinovart-Sanjuán (1) , Kuppalapalle Vajravelu (1) , Reinaldo Rodríguez-Ramos (2) , Raúl Guinovart-Díaz (2) , Julián Bravo-Castillero (3) , Frédéric Lebon (4) , Federico Sabina (3)

1 UCF - University of Central Florida [Orlando]
2 Universidad de La Habana [Cuba]
3 UNAM - Universidad Nacional Autónoma de México = National Autonomous University of Mexico
4 LMA - Laboratoire de Mécanique et d'Acoustique [Marseille]

The manuscript offers a methodology to solve the local problem derived from the homogenization technique, considering composite materials with generalized periodicity and imperfect spring contact at the interface. The general expressions of the local problem for an anisotropic composite with perfect and imperfect contact at the interface are derived. The analytical solutions of the local problems are obtained by solving a system of partial differential equations. In order to validate the model, the effective properties of the structure presented in the literature are obtained as particular cases. The solution of the local problem is used to extend the study to more complex structures, such as, wavy laminates shell composites with imperfect spring type contact at the interface. Also, the results are compared with the results for perfect and imperfect contact models available in the literature.

Mots clés: Layered structures; Laminates; Analytical modelling; Numerical analysis

Domaines: Mécanique des solides [physics.class-ph]

David Guinovart-Sanjuán, Kuppalapalle Vajravelu, Reinaldo Rodríguez-Ramos, Raúl Guinovart-Díaz, Julián Bravo-Castillero, et al.. Analysis of effective elastic properties for shell with complex geometrical shapes. Composite Structures, 2018, 203, pp.278-285. ⟨10.1016/j.compstruct.2018.07.036⟩. ⟨hal-02021036⟩