Any useful examples or approaches will be helpful.
A simple fgm plate that varies from ceramic to steel with a defined function in one coordinate.
Check this article.
http://link.springer.com/article/10.1007/s10999-014-9265-y?sa_campaign=email/event/articleAuthor/onlineFirst
In a FG plate, mechanical and physical properties are varied continuously from one surface to another. You can approximate the variation using the elements of laminated (or multilayered) shell. In this case, you will have to specify the material properties of each layer according to the given law. This is similar to approximation of a continuous function by a piecewise constant function. The more layers you use the better the approximation. You can study convergence of the process increasing the number of layers. I guess, 10 or 20 layers would be sufficient.
Dear Alireza
Using UMAT subroutine is another way to model the FGM material in ABAQUS. You can find useful information in abaqus documentation.
Check this article.
http://link.springer.com/article/10.1007/s10999-014-9265-y?sa_campaign=email/event/articleAuthor/onlineFirst
For analysis of FGM problems by using a commercial finite element software, such as ABAQUS, assigning continuously variable properties (e.g. Young modulus, plasticity modulus, yield stress) across the wall thickness is not possible.
The virtual temperature technique that is mentioned in the manuscript is, indeed, a trick devised by the authors for modeling problem with continuously variable mechanical properties with excellent results.
In this technique, assigning continuously variable temperature across the thickness and then we create a one to one relationship between temperature and mechanical properties. So, Correlation of the distribution of temperature and mechanical properties of FGM material, allowed for the variation of the FGM mechanical properties in the thickness of cylinder.
Note that conductivity factor and other thermal parameters are zero, and temperature does not change in during the analysis time. indeed, the analysis is mechanical. In this technique, there is no need to subdivide the thick wall into several thin layers.
https://www.researchgate.net/publication/316966052_FGM_Modelling_using_Dummy_Thermal_Loads_Applied_with_ANSYS_APDL
Article FGM Modelling using Dummy Thermal Loads Applied with ANSYS APDL
Can someone tell which CAD software are good for lattice structure modeling ?
you can use any of the commercially available software packages like comsol, Ansys and Abaqus to solve of modelled the FGM.
in Abaqus you use, Using UMAT subroutine to modelled the FGM.
hi Dear Kumar
In this technique, assigning continuously variable temperature across the thickness and then we create a one to one relationship between temperature and mechanical properties. So, Correlation of the distribution of temperature and mechanical properties of FGM material, allowed for the variation of the FGM mechanical properties in the thickness of cylinder.
Note that conductivity factor and other thermal parameters are zero, and temperature does not change in during the analysis time. indeed, the analysis is mechanical. In this technique, there is no need to subdivide the thick wall into several thin layers.
You can divide your geometry to the tiny sections and attached the property that you want to each section. using an excel file to determine each section's property.
here is a video:
https://youtu.be/Aobwq5kHJ74
for 2D and 3D modeling of FGM in ABAQUS
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