×
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

Singular Point

Singular Point

Singular Point

(OP)
Hello,

I am working on large girders with openings in its web, In my model results, I see unexpected large stresses on some points due to the singularity of the point, does anyone know how to remove this problem,

Shahid

RE: Singular Point

Ignore it but if you really need to know the stress there then do a sub-model of that region.

corus

RE: Singular Point

hi corus
i have the same proplem of msonys.
and i'm new in using abaqus
could you please tell me what (sub-model) or send me the link for how to form it.
wan  

RE: Singular Point

If you can explain the high stresses at the singularity, either by a point load or point restraint, then there's probably no need to worry about it as your modelling assumption is too crude for that point. If it is a point load and you get high stresses then you'd expect high stresses but not for the structure to fail at that point. If I put a load on a table acting through a pin then stresses under the pin will be above yield as the force per area increase with reduced area. The table doesn't necessarily break though. Think about your results and what you are getting from the model.

Details on sub modelling can be found in the manuals.

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