Create the area. Before meshing run the following code:

ET,1,SHELL181

n=2 ! index in the power law;  0

you have two possibilities, one is to do a different layer with diffrent proprities for eatch one , the second is to do a macro witch able to change the elements material

god luck

Create the area. Before meshing run the following code:

ET,1,SHELL181

n=2 ! index in the power law;  0

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

FULL TEXT Available at:

http://dergipark.gov.tr/josisat/issue/33131/339251