Modified couple stress-based nonlinear static bending and transient responses of size-dependent sandwich microplates with graphene nanocomposite and porous layers

2022 ◽  
Vol 171 ◽  
pp. 108704
Author(s):  
Chang Tao ◽  
Ting Dai
Keyword(s):  
Couple Stress ◽  
Transient Responses ◽  
Porous Layers ◽  
Size Dependent ◽  
Modified Couple Stress ◽  
Graphene Nanocomposite ◽  
Nonlinear Static

Size-dependent bending behavior of three-layered doubly curved shells: Modified couple stress formulation

2018 ◽  
Vol 22 (7) ◽  
pp. 2210-2249 ◽  
Author(s):  
Mohammad Arefi
Keyword(s):  
Applied Voltage ◽  
Couple Stress ◽  
Virtual Work ◽  
Couple Stress Theory ◽  
Shear Deformation Theory ◽  
Small Scale ◽  
Size Dependent ◽  
Modified Couple Stress ◽  
Doubly Curved ◽  
Piezoelectric Shell

In this paper, modified couple stress formulation of a small scale doubly curved piezoelectric shell resting on Pasternak's foundation is presented based on first-order shear deformation theory. Size-dependent electro-elastic results of doubly curved shell are presented based on an analytical approach. The doubly curved piezoelectric shell is subjected to uniform transverse loads and applied voltage. To account the size dependency, modified couple stress theory is employed in conjunction with principle of virtual work. The numerical results are presented in both tabular and graphical forms to show the influence of small scale parameter, applied voltage, geometries and two parameters of Pasternak's foundation on the electro-elastic results of size-dependent doubly curved piezoelectric shell.

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