Nonlinear analysis of functionally graded beams using the dual mesh finite domain method and the finite element method

2020 ◽  
Vol 127 ◽  
pp. 103575 ◽  
Author(s):  
J.N. Reddy ◽  
Praneeth Nampally ◽  
Arun R. Srinivasa
1991 ◽  
Vol 40 (5) ◽  
pp. 1151-1167 ◽  
Author(s):  
J.J. Lin ◽  
M. Fafard ◽  
D. Beaulieu ◽  
B. Massicotte

2017 ◽  
Vol 20 (K2) ◽  
pp. 141-147
Author(s):  
Bang Kim Tran ◽  
Huy The Tran ◽  
Tinh Quoc Bui ◽  
Thien Tich Truong

Analysis of mechanical behavior of a structure containing defects such as holes and inclusions is essential in many engineering applications. In many structures, the discontinuities may have a significant influence on the reduction of the structural stiffness. In this work, we consider the effect of multiple random holes and inclusions in functionally graded material (FGM) plate and apply the extended finite element method with enrichment functions to simulate the mechanical behavior of those discontinuous interfaces. The inclusions also have FGM properties. Numerical examples are considered and their obtained results are compared with the COMSOL, the finite element method software.


2019 ◽  
Vol 35 (5) ◽  
pp. 591-600 ◽  
Author(s):  
A. Polat ◽  
Y. Kaya ◽  
K. Bendine ◽  
T.Ş. Özşahin

ABSTRACTIn this study, continuous contact problem in the functionally graded (FG) layer loaded with two rigid flat blocks resting on the elastic semi-infinite plane was analyzed by the finite element method. The two-dimensional numerical model of the FG layer was made with the software added to the ANSYS program. This software can be adapted to all contact problem types by making minor changes. The accuracy check of the program was performed by comparing with the analytical solution of the problem by homogeneous layer and its solution by the finite element method. So, fast and practical solutions can be obtained by the developed finite element method on many applications such as; automotive, aviation and space industry applications. The comparisons made showed that the proposed solution gave good results at acceptable levels. In the problem, it was thought that all surfaces were frictionless. The external loads P and Q were transmitted to the FG layer via two flat rigid blocks. Normal stresses between the FG layer and the elastic plane, initial separation loads, initial separation distances and contact stresses under the blocks were investigated for various dimensionless quantities.


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