Smart questions
Smart answers
Smart people
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Member Login




Remember Me
Forgot Password?
Join Us!

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips now!
  • 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!

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

Donate Today!

Do you enjoy these
technical forums?
Donate Today! Click Here

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.
Jobs from Indeed

Link To This Forum!

Partner Button
Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum.
Just copy and paste the
code below into your site.

rphill12 (Mechanical)
23 Oct 07 8:54
I'm trying to find the Poisson ratio for a number of polymers and composites but I'm having trouble doing so.  Is there a reason that this information is so hard to come by?  I know that most polymers have a range of 0.3 to 0.5, but specific values are needed for this application.

The materials in question are:

ABS
PC
EMI 262
EMI 361    
RTP 681    
Ultem 1000


Thank you for your help!
Helpful Member!  cedro (Mechanical)
23 Oct 07 11:08
Hello,

I use 0.38 for ABS and PC.

Generally I use 0.4 for thermoplastics, near 0.5 for rubberlike polymers and down to min 0.35 for glass filled or mineral filled polymers.

This is due for RT and moderate strain levels. At high level of plastic strain you would need something else to be correct.

PC and ABS are amorphous polymer and shuold be quite stable in their using temperatures.  

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!

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close