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.
All domains not applicable in Electrostriction multiphysics settings
Posted 22 mag 2024, 05:14 GMT-4 Low-Frequency Electromagnetics, Structural Mechanics, Physics Interfaces Version 6.0 3 Replies
Please login with a confirmed email address before reporting spam
Hello everyone, I'm trying to simulate the effect of electric field on the mechanical properties of a capacitor. When I try to select domain for the Electrostriction multiphysics all domains are listed as not applicable. The geometry is formed as a union, COMSOL version 6.0, see attached file.
Tnx a lot in advance for any advice from a beginning but enthusiastic COMSOL user
Attachments:
Please login with a confirmed email address before reporting spam
Hi Massimiliano,
The Electrostriction multiphyiscs node is not applicable because the Material type setting is set to Nonsolid in the Settings window for Charge Conservation in the Electrostatics interface. It should be set to Solid in the model domains.
Best regards,
Magnus
Please login with a confirmed email address before reporting spam
Hello, thank you for your suggestion, the domains now are ok, but I still find difficult to plot capacitor deformation. Can you suggest a tutorial? I can find only a lot of piezoelectric examples in the learning center.
Thank you again
Please login with a confirmed email address before reporting spam
Hello Massimilano,
Plotting deformation is common in structural mechanics models by adding a Deformation subnode to your plot. Its default spatial components are the displacements u, v, and w (in 3D), scaled to show an exaggerated deformation (actual deformations are generally small in comparison to the model geometry). You can change the default scaling if needed.
Best regards, Magnus