Modelling of Three-Dimensional Solids : Finite Prism and Finite Layer Methods

2020 ◽  
pp. 137-158
Author(s):  
Y.K. Cheung ◽  
L.G. Tham
Keyword(s):  
Three Dimensional ◽  
Finite Layer ◽  
Finite Layer Methods

scholarly journals Thermoelastic Stress and Deformation Analyses of Functionally Graded Doubly Curved Shells

2019 ◽  
Vol 3 (4) ◽  
pp. 94 ◽  
Author(s):  
Wu ◽  
He
Keyword(s):  
Material Properties ◽  
Three Dimensional ◽  
Thermoelastic Stress ◽  
Functionally Graded ◽  
Power Law Distribution ◽  
Two Phase ◽  
Finite Layer ◽  
Stress And Deformation ◽  
Finite Layer Methods ◽  
Doubly Curved

In this paper, the authors develop Reissner’s mixed variational theorem (RMVT)-based finite layer methods for the three-dimensional (3D) coupled thermoelastic analysis of simply supported, functionally graded, doubly curved (DC) shells with temperature-independent material properties. A two-phase composite material is considered to form the shell, and its material properties are assumed to obey a power–law distribution of the volume fractions of the constituents through the thickness direction of the shell. The effective material properties are estimated using the Mori–Tanaka scheme. The accuracy and convergence rate of these RMVT-based finite layer methods are validated by comparing their solutions with the quasi 3D and accurate two-dimensional solutions available in the literature.

Coupled thermo-electro-mechanical analysis of sandwiched hybrid functionally graded elastic material and piezoelectric plates under thermal loads

2017 ◽  
Vol 232 (10) ◽  
pp. 1851-1870 ◽  
Author(s):  
Chih-Ping Wu ◽  
Shuang Ding
Keyword(s):  
Elastic Material ◽  
Material Properties ◽  
Convergence Rates ◽  
Three Dimensional ◽  
Thermal Conditions ◽  
Mechanical Analysis ◽  
Functionally Graded ◽  
Thermal Loads ◽  
Finite Layer ◽  
Finite Layer Methods

Based on Reissner’s mixed variational theorem, a weak-form formulation of finite layer methods is developed for the three-dimensional coupled thermo-electro-mechanical analysis of simply-supported, functionally graded elastic material plates integrated with surface-bonded piezoelectric layers and under thermal loads. The material properties of the functionally graded elastic material core are assumed to obey the power-law distributions varying through-the-thickness coordinate of the core according to the volume fractions of the constituents, and those of the functionally graded elastic material core and piezoelectric face sheets are also temperature dependent. The effective material properties of the functionally graded elastic material are estimated using the Mori-Tanaka scheme. Two different thermal conditions, i.e. the convection conditions and specified temperature conditions, on the top and bottom surfaces of the plate are considered. The accuracies and convergence rates of the finite layer methods with various orders used for expanding the elastic and electric variables in the thickness direction are assessed by comparing their solutions with the exact three-dimensional ones available in the literature.

A Three-Dimensional Analytical Solution for the Study of Air Pollutant Dispersion in a Finite Layer

2015 ◽  
Vol 155 (2) ◽  
pp. 289-300
Author(s):  
Ema’a Ema’a Jean Marie ◽  
Ben-Bolie Germain Hubert ◽  
Ele Abiama Patrice ◽  
Ali Zarma ◽  
Owono Ateba Pierre
Keyword(s):  
Analytical Solution ◽  
Three Dimensional ◽  
Pollutant Dispersion ◽  
Air Pollutant ◽  
Air Pollutant Dispersion ◽  
Finite Layer
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