Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Modeling piezoelectric with a non-piezoelectric material

Please login with a confirmed email address before reporting spam

Good morning.

I'm trying to model the mechanical behavior of a piezoelectric material on top of a non-piezoelectric material. Because the bottom material is non-piezoelectric, COMSOL does now allow me to use the piezoelectric modeling because the necessary constants that COMSOL needs for a piezoelectric study are not present in the non-piezoelectric material (this makes sense).

How can I model this structure? I know COMSOL is suppose to use multi-physics for something like this, but I do not know how to let it know that one material is piezoelectric, and the other material isn't. That way, it only applies the piezoelectric constants and equations to the piezoelectric material, and then calculates the stresses and strains for both the piezoelectric and non piezoelectric composite.

Thanks for any help

1 Reply Last Post 25 mar 2014, 13:03 GMT-4
Edgar J. Kaiser Certified Consultant

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 25 mar 2014, 13:03 GMT-4
Andres,

you can add a 'Linear Elastic Material Model' under the piezoelectric node and put the non-piezoelectric domains there.

Cheers
Edgar

--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Andres, you can add a 'Linear Elastic Material Model' under the piezoelectric node and put the non-piezoelectric domains there. Cheers Edgar -- Edgar J. Kaiser emPhys Physical Technology http://www.emphys.com

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.