How to model piezo ceramic properties in FEA simulations (COMSOL)

In this video (webinar recording), I use a reference dataset and experimental data measured from a piezo ceramic ring to determine all the tensor piezo properties for the experimental sample.

***Do you have this problem? Then watch the video***
You would like to model your piezoelectric ceramic you will use for prototyping but…
(1) You are ordering ceramics from a supplier that does not provide the entire datasheet
(2) You notice that the ceramics you receive have different properties from the datasheet

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[dmyegorov]

Thank you very much for your work, this is a great information, I wish I had it when I was struggling with trying to match Chinese ceramics with modeling results !!!

[ZhengYi-hlww]

Thank you very much for this video. Two questions: (1) The Mechanical Damping is added in "Piezoelectric Material 1" here while it was added as "Damping" in "Linear Elastic Material 1" in one of your previous video. Do they have the same effect? (2) How to adjust the polarization direction in COMSOL? Why we don't need to set the direction here in this sample? Thanks a lot and looking forward to your reply.

[ludmilagrigoryeva]

Thank you for your work! Its very interesting. And do you simulate in Ansys? I`m interested in losses tangents. Can we trust to table data? Are there reliable experiment method for their founding?

[davidegalletta]

Thank you very much for the valuable video. I would like to ask you a question. I made a very similar simulation. I want to compute the impedance of PZT on a frequency range. Unfortunately I'm only managing to getting the real value of the current, but not the imaginary one. As a consequence i can't get the correct imaginary impedance (and also module and phase). Could you please give me an advice? Thank you in advance!

[sainaup]

very nice, I have question about a Piezo electric that impact by a beam, Would u help me?

[alishahzarasif]

Have you fixed constraint the bottom of ring for simulation or it's is free??please reply 😢

[MSaleem_]

Sir, i have some doubt on my simulation

[shivamgurjar]

how to add Square wave voltage to pzt 5 in frequency study for inverse peizo operation ?

[metrofisioterapi]

please, made tutorial ultrasonic tranducer for physiotherapy. req. spesific output : freq. 1Mhz & 3Mhz, and the output power is 0, 2-2 Watt