Thank you for your response.

I think the model that you mentioned above is not the same model here: https://www.comsol.com/model/composite-piezoelectric-transducer >> I cannot see any Thin Elastic Layer in the model.

How do you choose the boundary as Thin Elastic Layer? When I try it, all boundaries looks “not applicable”.

Is there a reference model in structural mechanics model that I can check?

Thank you,

Best regards,

Osman

The up() and down() operators (for example: up(v) and down(v) where v is the y displacement) that are built-in for such boundary conditions will give you the displacement components of the boundaries on either side of the “spring layer” that the thin elastic layer represents. These operators are discussed here: https://www.comsol.com/blogs/analyze-thin-structures-using-up-and-down-operators/

Best regards,

Chandan

If you do a frequency domain analysis, how would you extract the displacement data on the Thin Elastic Layer?

Thank you

There is no rigorous theoretical derivation for the spring constants that can be referenced here. The equations used are based on the asymptotic values explained in the article and its behavior for other Poisson’s ratio values.

Best regards,

Chandan

I was just wondering where the formulations for the spring constant per area came from? I would like to get some more understanding about how they are formulated

Thanks,

Andrew