×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Electric field crossing a dielectric mismatch

Electric field crossing a dielectric mismatch

Electric field crossing a dielectric mismatch

(OP)
Hi,
I was doing a simulation on Piezoelectric fiber composite made of PZT fiber and epoxy in ABAQUS. The electric field in these composites is parallel to the interface plane (the electrodes are surface electrodes). I noticed that when the electric field is applied on the surface of epoxy it can not cross easily to the PZT but at the inverse case it is very easy.
I don't understand I am getting a difference between both cases. the electric field is crossing the same dielectric mismatch.
I am uploading two pictures for both cases for the potential contours obtained.
(The electrodes are on the top surface )
rod is made of two layers one is pzt the other epoxy
1st case epoxy upper side where the electrodes
2nd case PZT upper side where the electrodes.

Thanks

RE: Electric field crossing a dielectric mismatch

Why not post this on one of the electrical forums?

RE: Electric field crossing a dielectric mismatch

Maybe, because the PZT is an insulator when compared with the epoxy which is orders of magnitude more conductive.

RE: Electric field crossing a dielectric mismatch

Think about the difference in dielectric constants between epoxy and PZT, their relative positions with respect to the source of the electric fields and the distortion of free space fields caused by the dielectric materials.

Bruce
www.accuratus.com

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources