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!

*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.

Jobs

Getting the in-plane shear modulus G12 of a weave composite...

Getting the in-plane shear modulus G12 of a weave composite...

(OP)
Hey guys, I'm trying to get G12 of a cured composite. The fibers are weave, so is there a special formula I can use to find G12 (Huber's Formula?).. or is it only determined experimentally. Let's assume there's no data sheet for the material, and currently I have E1 (which equals E2) and poissons...

RE: Getting the in-plane shear modulus G12 of a weave composite...

From what I remember in my composite materials master's course 10 years ago, I believe you need to get it experimentally. It is not isotropic material anymore..

Spaceship!!
Aerospace Engineer, M.Sc. / Aircraft Stress Engineer

RE: Getting the in-plane shear modulus G12 of a weave composite...

There is no formula.

However, the G12 for most carbon fiber epoxy composites (uni tape and fabrics) at room temperature is ~ 0.7 msi

RE: Getting the in-plane shear modulus G12 of a weave composite...

(OP)
@SWcomposites sorry for posting in more than one place..

Do you have a source for G12 being roughly .7 msi?

RE: Getting the in-plane shear modulus G12 of a weave composite...

CMH-17

(and 30+ years experience)

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


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