Simulation FGM (Functionally Graded Material) using USDFLD subroutine Abaqus

In this example we intend to simulate FGM (Functionally Graded Material) using USDFLD subroutine in the Abaqus software

The cylinder is made of FGM and it’s properties will change continuously and gradually with respect to their positions

In other words , the properties of FGM are indeed a function of the coordinates

In this question , the properties of FGM are a function of radius (if the radius changes , the properties of FGM will change as well)

The inner radius of the cylinder is 80mm and it’s outer radius is 100 mm. The cylinder is 1000 mm long

The inner material is ceramic and the outer material is aluminum

All the properties include density , Young modulus , Poisson  ratio , thermal conductivity and thermal expansion to be dependent on the radius

We should use the subroutine USDFLD in order to define Field 1. Actually , Field 1 will be defined by using the subroutine USDFLD

Information about this tutorial

Full video (Step by step)


Cae file


inp file


Excel file (FGM material)


Excel file (Ceramic and Aluminum materials)


Subroutine file (USDFLD)


Pictures (Calculation of FGM properties)

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Is 23 minutes

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Is 55 MB

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