The Elastic-Plastic Analysis of Functionally Graded Plate

2013 ◽  
Vol 275-277 ◽  
pp. 1040-1044
Author(s):  
Li Zhang ◽  
Yong Qi Yang ◽  
Xian Bin Tao
Keyword(s):  
Functionally Graded Materials ◽  
Functionally Graded ◽  
Flexible Design ◽  
Functionally Graded Plate ◽  
Graded Materials ◽  
Plastic Properties ◽  
Plastic Design ◽  
Continuous Structure ◽  
Elastic Plastic ◽  
Plastic Analysis

The elastic and plastic properties of functionally graded materials in our model are assumed to abide by the mixing law and a program package is developed based on the material subroutines in ABAQUS. Using this package, an elastic-plastic analysis is performed to study a plate made of functionally graded materials. Results of a flexible design and an elastic-plastic design, and those of a continuous structure and a layered structure are compared. It is found that the elastic-plastic design is more reasonable than the flexible design and the continuous structure is more in line with the design concept of functionally graded materials.

On the calibration of elastic-plastic models for metal-ceramic functionally graded materials

2008 ◽  
Author(s):  
Massimiliano Bocciarelli ◽  
Gabriella Bolzon ◽  
Giulio Maier ◽  
Glaucio H. Paulino ◽  
Marek-Jerzy Pindera ◽  
...  
Keyword(s):  
Functionally Graded Materials ◽  
Functionally Graded ◽  
Graded Materials ◽  
Elastic Plastic ◽  
Metal Ceramic

scholarly journals Numerical analysis of the elastic-plastic behavior of a tubular structure in FGM under pressure and defect presence

2021 ◽  
Vol 16 (59) ◽  
pp. 212-231
Author(s):  
Kouider Madani ◽  
A. Houari ◽  
A.S. Bouchikhi ◽  
M. Mokhtari
Keyword(s):  
Equivalent Stress ◽  
Functionally Graded ◽  
Plastic Behavior ◽  
Graded Materials ◽  
Plastic Properties ◽  
Cylindrical Structures ◽  
Elastic Plastic ◽  
The Many ◽  
Von Mises ◽  
Micro Cavity

Given the field of application and the many advantages, the use of FGM (Functionally Graded Materials) materials has recently been extended in several components and more particularly in cylindrical structures, which have been the subject of several recent studies. Our work aims to use the finite element method to analyze a cylindrical structure in FGM with properties gradated in the direction of the radius (Thickness) solicited purely in internal pressure by the implementation of a UMAT subroutine in the calculation code ABAQUS. The elasto-plastic behavior of the FGM is described by the flow theory represented by the equivalent stress of Von Mises and an incremental hardening variable. The TTO model (Tamura-Tomota-Ozawa) was used only to determine the elastic-plastic properties of the FGM material. The radial, tangential and axial stresses according to the thickness were evaluated in the first part of our work. In the second part, these stresses are evaluated under the same conditions but with the presence of a micro-cavity. The results obtained show clearly that these stresses are in direct relation not only with the thickness and properties of the FGM tube but also with the presence of the cavity.

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