General higher-order equivalent single layer theory for free vibrations of doubly-curved laminated composite shells and panels

2013 ◽  
Vol 104 ◽  
pp. 94-117 ◽  
Author(s):  
Francesco Tornabene ◽  
Erasmo Viola ◽  
Nicholas Fantuzzi
Keyword(s):  
Single Layer ◽  
Laminated Composite ◽  
Free Vibrations ◽  
Higher Order ◽  
Composite Shells ◽  
Doubly Curved ◽  
Laminated Composite Shells

Stress and Strain Recovery of Laminated Composite Doubly-Curved Shells and Panels Using Higher-Order Formulations

2014 ◽  
Vol 624 ◽  
pp. 205-213 ◽  
Author(s):  
Erasmo Viola ◽  
Francesco Tornabene ◽  
Nicholas Fantuzzi
Keyword(s):  
Differential Quadrature Method ◽  
Three Dimensional ◽  
Single Layer ◽  
Laminated Composite ◽  
Higher Order ◽  
Equilibrium Equations ◽  
Analysis And Design ◽  
Generalized Differential ◽  
Doubly Curved ◽  
Laminated Composite Shells

The present paper investigates the static behaviour of doubly-curved laminated composite shells and panels. A two dimensional Higher-order Equivalent Single Layer approach, based on the Carrera Unified Formulation (CUF), is proposed. The differential geometry is used for the geometric description of shells and panels. The numerical solution is calculated using the generalized differential quadrature method. The through-the-thickness strains and stresses are computed using a three dimensional stress recovery procedure based on the shell equilibrium equations. Sandwich panels are considered with soft cores. The numerical results are compared with the ones obtained with a finite element code. The proposed higher-order formulations can be used for solving elastic problems involved in the first stage of any scientific procedure of analysis and design of masonry structures.

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