Multiscale analysis of viscoelastic laminated composite plates using generalized differential quadrature

2012 ◽  
Vol 223 (11) ◽  
pp. 2459-2476 ◽  
Author(s):  
Saeed Masoumi ◽  
Manouchehr Salehi ◽  
Mehdi Akhlaghi
Keyword(s):  
Multiscale Analysis ◽  
Laminated Composite ◽  
Composite Plates ◽  
Differential Quadrature ◽  
Laminated Composite Plates ◽  
Generalized Differential

Multi-scale analysis of viscoelastic–viscoplastic laminated composite plates using generalized differential quadrature method

2012 ◽  
Vol 227 (7) ◽  
pp. 1406-1416 ◽  
Author(s):  
S Masoumi ◽  
M Akhlaghi ◽  
M Salehi
Keyword(s):  
Differential Quadrature Method ◽  
Laminated Composite ◽  
Composite Plates ◽  
Quadrature Method ◽  
Scale Analysis ◽  
Laminated Composite Plates ◽  
Multi Scale ◽  
The Matrix ◽  
Generalized Differential ◽  
Multi Scale Analysis

Multi-scale analysis of laminated composite plates with viscoelastic–viscoplastic behavior of matrix is studied. Simplified unit cell method is developed to derive a new formulation for analysis of composite materials, including viscoelastic–viscoplastic matrix. The viscoelastic behavior of the matrix is modeled using Boltzmann superposition principle and the creep compliance is modeled using Prony series. Zapas–Crissman functional model is applied to obtain viscoplastic behavior of the matrix. In structural level, equations of equilibrium of laminated composite plate in terms of displacements have been derived using first order shear deformation theory with von Karman kinematic nonlinearity type. The nonlinear equations of equilibrium of plate are solved using generalized differential quadrature method. The details of the multi-scale analysis process have been discussed. Results include the effect of different parameters on creep behavior of composite materials in microscale and also micro-macro analysis.

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