Ming: If you have access to ANSYS Release 9.0, there is a good piezoelectric example in the "Coupled-Field Analysis Guide". That Guide is available in the Help system. I recommend using the new 22x direct coupled-field elements. They are very robust for piezoelectric simulation. Regards, Dan Shaw, ANSYS, Inc. -----Original Message----- From: Li Ming Subject: [mems-talk] piezoelectric material using Ansys I am studying dynamics of a piezoelectric material using Ansys soft package, and lack the material about it. if anyone has the examples, please send me some, Thank you for your help.