×
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

Using cohesive elements, Abaqus (cohesion, glue)

Using cohesive elements, Abaqus (cohesion, glue)

Using cohesive elements, Abaqus (cohesion, glue)

(OP)
Dear all,

Is there anyone who can help me? I would like to create a model of a glued in rod. I'm trying to do this by using cohesive elements. But probably there is something wrong in my input file or with an orientation or something. The displacements are extremly high. Is there anyone who has experience in modelling these kinds of models?

I look forward to receiving your answer,

Ronald

 

RE: Using cohesive elements, Abaqus (cohesion, glue)

Hi

What's the aim of your simulation? Do you want to model damage and failure using cohesive zone elements? How are you going to find the cohesive element properties? More details would help.

 

RE: Using cohesive elements, Abaqus (cohesion, glue)

(OP)
Dear amubashar,

Yes i would like to model damage and failure by using cohesive zone elements. The main goal is to load an glued in rod by using displacement control.

For the glue (cohesive element) i defined the next properties:
- Elastic properties,
- Quads Damage
  - Damage Evolution
  - Damage Stabilization Cohesive

The fracture energies and maximum stresses, stifness and poisson's ratio are determined by doing tests or are taken frome literature.

The main problem that i have at this moment is with the definition of the top face and the bottom face of the cohesive elements.

I modelled the glue line by drawing a tube with an inner diameter of 8 mm and an outer diameter of 8,5 mm. Because i just modelled 1/2 of the model, i also modelled 1/2 of this tube. After drawing this section i defined the depth of 320 mm (extrusion).

When the glue line consist of an rectangular section, it is quite easy to define the top face and the bottom face of the cohesive element.

Do you have any idea how i can change the material orientation of this tube i such a way that the outer surface of the tube is the top face of the cohesion element? I other words, how can i specify the local material orientations of a tube?

I look forward to receiving your answer,

Ronald
 

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