Geometrically nonlinear dynamic response of eccentrically stiffened circular cylindrical shells with negative poisson's ratio in auxetic honeycombs core layer

2019 ◽  
Vol 152 ◽  
pp. 443-453 ◽  
Author(s):  
Pham Hong Cong ◽  
Pham Thanh Long ◽  
Nguyen Van Nhat ◽  
Nguyen Dinh Duc
Keyword(s):  
Dynamic Response ◽  
Nonlinear Dynamic ◽  
Cylindrical Shells ◽  
Core Layer ◽  
Poisson's Ratio ◽  
Geometrically Nonlinear ◽  
Negative Poisson’S Ratio ◽  
Nonlinear Dynamic Response ◽  
Negative Poisson's Ratio ◽  
Circular Cylindrical Shells

Nonlinear dynamic response and vibration of sandwich composite plates with negative Poisson’s ratio in auxetic honeycombs

2016 ◽  
Vol 20 (6) ◽  
pp. 692-717 ◽  
Author(s):  
Duc Dinh Nguyen ◽  
Cong Hong Pham
Keyword(s):  
Dynamic Response ◽  
Nonlinear Dynamic ◽  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Core Material ◽  
Sandwich Plates ◽  
Negative Poisson’S Ratio ◽  
Nonlinear Dynamic Response ◽  
Elastic Foundations ◽  
Negative Poisson's Ratio

Auxetic cellular solids in the forms of honeycombs under blast load have great potential in a diverse range of applications, including core material in sandwich plates composite components. Based on Reddy’s first-order shear deformation plate theory, this paper presents an analysis of the nonlinear dynamic response and vibration of sandwich plates with negative Poisson’s ratio in auxetic honeycombes on elastic foundations subjected to blast and mechanical loads. A three-layer sandwich plate is considered discretized in the thickness direction by using analytical methods (stress function method, approximate solution), Galerkin method, and fourth-order Runge-Kutta method. The results show the effects of geometrical parameters, material properties, mechanical and elastic foundations on the nonlinear dynamic response, and vibration of sandwich plates.

Nonlinear thermo- electro-mechanical dynamic response of shear deformable piezoelectric sigmoid functionally graded sandwich circular cylindrical shells on elastic foundations

2016 ◽  
Vol 20 (3) ◽  
pp. 351-378 ◽  
Author(s):  
Dinh Duc Nguyen
Keyword(s):  
Dynamic Response ◽  
Material Properties ◽  
Nonlinear Dynamic ◽  
Cylindrical Shells ◽  
Functionally Graded ◽  
Geometrical Parameters ◽  
Nonlinear Dynamic Response ◽  
Elastic Foundations ◽  
Circular Cylindrical Shells ◽  
Shear Deformable

In this paper, we study the nonlinear dynamic response of higher order shear deformable sandwich functionally graded circular cylindrical shells with outer surface-bonded piezoelectric actuator on elastic foundations subjected to thermo-electro-mechanical and damping loads. The sigmoid functionally graded material shells are made of the metal–ceramic–metal layers with temperature-dependent material properties. The governing equations are established based on Reddy’s third-order shear deformation theory using the stress function, the Galerkin method and the fourth-order Runge–Kutta method. Numerical results are given to demonstrate the influence of geometrical parameters, material properties, imperfection, elastic foundations, and thermo-electro-mechanical and damping loads on the nonlinear dynamic response of the shells. Accuracy of the present formulation is shown by comparing the results of numerical examples with the ones available in literature.

Sign in / Sign up

Export Citation Format

Share Document