You can use the initial stress feature in ANSYS to apply a stress gradient.  You
will probably need to use the ISWRITE command to create an initial stress file
and then use the ISFILE command to read in the initial stress into the model.
Check out Section 2.6.13 in the "Basic Analysis Procedure Guide" for more
details.

Regards.

Daniel Shaw
ANSYS, Inc
*****************************************************************

-----Original Message-----
From: ssing77 [mailto:[email protected]]
Sent: Monday, March 29, 2004 11:40 AM
To: [email protected]
Subject: [mems-talk] how to apply thin film residual stress
gradient alongthickness in Ansys

Hello everyone

Does anyone know how to apply the stress gradient of thin film in ANSYS analysis
for bilayer cantilever ?
I want to analysis the multilayer beam deflection resulted from residual stress
gradient along thickness. ( this stress
was originated from film deposition process.)  But, i can't find the method to
apply stress gradient in ansys.

Could you let me know the detail steps, element type, and so on ?

Ssing77