×
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

Elastic-Plastic analysis on a weld

Elastic-Plastic analysis on a weld

Elastic-Plastic analysis on a weld

(OP)
Hi,

I have done the FEA on a weld joint (sheet metal laser welded to a solid shaft). There is no filler material involved and due to a fillet and a corner break on the mating parts, there is a sharp corner in the FE model. There is not much info on how much the weld would penetrate and what shape it would be.

The stress at this very sharp corner (1 node)is like 1000 MPa and the yield stress of the material is 200 MPa.I am not sure how to conclude on this one. So I included the plastic properties in the model and run the analysis. Now the equivalent plastic strain at that sharp point is 2%.I am not sure how to conclude based on these results.

I am using ABAQUS as solver.

I appreciate all your help on this.

thanks

RE: Elastic-Plastic analysis on a weld

Why are you doing the analysis? What were you expecting to gain from the analysis?

As you don't really know the weld profile nor how far the weld material penetrates I don't think you can have much confidence in the validity of the results. The stress at a corner will be infinite and localised so I would ignore values there.

corus

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