Three-dimensional analysis of a functionally graded coating/substrate system of finite thickness

2008 ◽  
Vol 366 (1871) ◽  
pp. 1821-1826 ◽  
Author(s):  
M Kashtalyan ◽  
M Menshykova
Keyword(s):  
Finite Thickness ◽  
Three Dimensional ◽  
Thermomechanical Properties ◽  
Functionally Graded ◽  
Displacement Fields ◽  
Functionally Graded Coating ◽  
Graded Coating ◽  
Graded Material ◽  
Coating Type ◽  
Coating Design

The concept of functionally graded material (FGM) is currently actively explored in coating design for the purpose of eliminating the mismatch of thermomechanical properties at the interfaces and thus increasing the resistance of coatings to functional failure. In the present paper, three-dimensional elastic deformation of a functionally graded coating/substrate system of finite thickness subjected to mechanical loading is investigated. A comparative study of FGM versus homogeneous coating is conducted to examine the effect of the coating type on stress and displacement fields in the system.

scholarly journals Numerical Modeling of Functionally Graded Coatings

2013 ◽  
Vol 829 ◽  
pp. 327-331 ◽  
Author(s):  
Maryam Heidari ◽  
Maria Kashtalyan
Keyword(s):  
Finite Elements ◽  
Three Dimensional ◽  
Functionally Graded ◽  
Contributing Factors ◽  
Displacement Fields ◽  
Graded Coatings ◽  
Graded Material ◽  
Heat Penetration ◽  
Functionally Graded Coatings ◽  
Coating Design

Coatings play an important role in a variety of engineering applications protecting metallic or ceramic substrates against oxidation, heat penetration, wear and corrosion. One of the contributing factors to structural or functional failure of coatings is a mismatch of material properties between the coating and substrate at the coating/substrate interface. The concept of Functionally Graded Material (FGM) is actively explored in coating design for the purpose of eliminating this mismatch and improving coating performance and integrity. This paper presents analysis of the mechanical behavior of functionally graded coatings using commercial finite elements software ABAQUS in which user implemented graded finite elements have been employed. The model is used to carry out a comparative study of three-dimensional stress and displacement fields in the coated plates with homogeneous and functionally graded coatings.

Anti-Plane Interfacial Crack with Functionally Graded Coating

2016 ◽  
Vol 713 ◽  
pp. 179-182
Author(s):  
Y.L. Tian ◽  
M. Li ◽  
Pi Hua Wen
Keyword(s):  
Interfacial Crack ◽  
Functionally Graded ◽  
Displacement Discontinuity ◽  
Displacement Discontinuity Method ◽  
Intensity Factors ◽  
Functionally Graded Coating ◽  
Graded Coating ◽  
Graded Material ◽  
Plane Displacement ◽  
Static Shear

The anti-plane displacement discontinuity method is applied to establish the Fredholm integral equation of the first kind for the orthotropic Functionally Graded Material (FGM) coatings subjected to static shear load. The Young's modulus is assumed to vary exponentially through the thickness while the Poisson's ratio is constant. The fundamental solution of anti-plane displacement discontinuity are derived for orthotropic FGM coating with isotropic substrate. The stress intensity factors are obtained directly from the coefficients of the Chebyshev polynomials.

scholarly journals Stress and Strain Analysis of Functionally Graded Rectangular Plate with Exponentially Varying Properties

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Amin Hadi ◽  
Abbas Rastgoo ◽  
A. R. Daneshmehr ◽  
Farshad Ehsani
Keyword(s):  
Rectangular Plate ◽  
Three Dimensional ◽  
Strain Analysis ◽  
Functionally Graded ◽  
Stress And Strain ◽  
Governing Equations ◽  
Displacement Fields ◽  
Stress And Displacement Fields ◽  
Graded Material ◽  
Three Dimensional Elasticity

The bending of rectangular plate made of functionally graded material (FGM) is investigated by using three-dimensional elasticity theory. The governing equations obtained here are solved with static analysis considering the types of plates, which properties varying exponentially along direction. The value of Poisson’s ratio has been taken as a constant. The influence of different functionally graded variation on the stress and displacement fields was studied through a numerical example. The exact solution shows that the graded material properties have significant effects on the mechanical behavior of the plate.

Three-dimensional buckling analyses of cracked functionally graded material plates via the MLS-Ritz method

2019 ◽  
Vol 134 ◽  
pp. 189-202 ◽  
Author(s):  
C.S. Huang ◽  
H.T. Lee ◽  
P.Y. Li ◽  
K.C. Hu ◽  
C.W. Lan ◽  
...  
Keyword(s):  
Functionally Graded Material ◽  
Ritz Method ◽  
Three Dimensional ◽  
Functionally Graded ◽  
Graded Material

Development of Functionally Graded Coating by Thermal Spray Deposition

2015 ◽  
pp. 121-162
Author(s):  
Jyotsna Dutta Majumdar ◽  
Indranil Manna
Keyword(s):  
Thermal Spray ◽  
Spray Deposition ◽  
Thermal Spraying ◽  
Chemical Vapor ◽  
Solid Substrate ◽  
Functionally Graded ◽  
Functionally Graded Coating ◽  
Energy Applications ◽  
Graded Coating ◽  
Gradient Coatings

Functionally Gradient Coatings (FGCs) are emerging materials with an improved service life and have a promising future for the production of (a) tailored components for applications subjected to large thermal gradients, (b) smart coating with improved corrosion and wear resistance, (c) improved fatigue wear, and (d) improved material structures for energy applications like batteries, fuel cells, etc. FGCs may be developed by physical/chemical vapor deposition, electro/electroless deposition, thermal spray deposition technique, etc. Thermal spraying refers to the technique or a group of techniques whereby molten or semi-molten droplets of materials are sprayed onto a solid substrate to develop the coating. In this chapter, detailed overviews of the development of functionally graded coating by thermal spray deposition techniques are presented. In addition, a few research results on the development of functionally graded coating for tribological and thermal barrier applications are presented.

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