An analysis of flexoelectric coupling associated electroelastic fields in functionally graded semiconductor nanobeams

2021 ◽  
Vol 130 (11) ◽  
pp. 115701
Author(s):  
Liangliang Chu ◽  
Guansuo Dui ◽  
Hai Mei ◽  
Lisheng Liu ◽  
Yanbin Li
Keyword(s):  
Functionally Graded ◽  
Electroelastic Fields

Modelling and Analysis of Piezolaminated Functionally Graded Polymer Composite Structures Reinforced with Graphene Nanoplatelets under Strong Electroelastic Fields

2018 ◽  
Vol 875 ◽  
pp. 3-8 ◽  
Author(s):  
Narasimha Rao Mekala ◽  
Rüdiger Schmidt ◽  
Kai Uwe Schröder
Keyword(s):  
Polymer Composite ◽  
Electric Fields ◽  
Composite Structures ◽  
Strong Electric Field ◽  
Constitutive Relations ◽  
Graphene Nanoplatelets ◽  
Functionally Graded ◽  
Electroelastic Fields ◽  
Uniform Dispersion ◽  
Piezoelectric Layers

This paper focuses on the electromechanical modelling and analysis of piezolaminated functionally graded polymer composites reinforced with graphene nanoplatelets considering strong electric field nonlinearities. Non-uniform distribution of reinforcement of graphene nanoplatelets is assumed along the thickness direction in multilayer polymer nanocomposites, whereas uniform dispersion GPLs in each layer is assumed. Modified Halpin-Tsai micromechanics is used to determine the effective Young’s modulus of GPLs considering the effects of geometry and dimension changes. Electro-elastic nonlinear constitutive relations are used to model the piezoelectric layers under strong applied electric fields. Through variational formulation, a finite element is derived to model and analyse the layered GPL/polymer composite structures. Various simulations are performed to study the effects of several parameters like distribution pattern and size of GPLs by applying actuation voltages to piezoelectric layers.

Dynamic Analysis with Stress Recovery for Functionally Graded Materials: Numerical Simulation and Experimental Benchmarking

2014 ◽  
Vol 2 (1) ◽  
pp. 21
Author(s):  
Carlos Alberto Dutra Fraga Filho ◽  
Fernando César Meira Menandro ◽  
Rivânia Hermógenes Paulino de Romero ◽  
Juan Sérgio Romero Saenz
Keyword(s):  
Numerical Simulation ◽  
Dynamic Analysis ◽  
Functionally Graded Materials ◽  
Functionally Graded ◽  
Stress Recovery ◽  
Graded Materials
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