×
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

Abaqus cohesive element help urgent!!

Abaqus cohesive element help urgent!!

Abaqus cohesive element help urgent!!

(OP)
Hi,
I analysed a resin bond in a lap joint using a cohesive COH3D8 element for resin in one case and C3D8R element for resin in another case. I am not finding any significant difference in stress values. So what is the difference between a normal 3D element and a cohesive 3D element. Can anybody please advice me on this issue?

Bharat

RE: Abaqus cohesive element help urgent!!

Hi Bharat,

Cohesive elements do not generate any stress as a result of membrane stretching or shearing. The only stresses developed in a 3D cohesive element therefore are through-thickness (33) and transverse shear (13 and 23). In a lap joint, the membrane stresses are minimal so you would expect to see similar results between the continuum and cohesive elements.

I hope this helps,
-Dan
Firehole Composites (firehole.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