×
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 invalid entity messages....

ABAQUS invalid entity messages....

ABAQUS invalid entity messages....

(OP)
Hi all, new user here....

I'm currently doing some structural analysis of models that I have made in Solidworks, and importing in the IGES format. However I'm unable to work on them in Abaqus (6.5-1), which says that the models are invalid, shown by a series of red vertices.

I have checked the model in Solidworks which is telling me that they're OK. The repair options don't seem to do anything or come up with more error messages...

Does anyone know a way around this?
Cheers, Mike

RE: ABAQUS invalid entity messages....

Did you try making the part precise? (It's in the Tools-Geometry Repair menu)

RE: ABAQUS invalid entity messages....

(OP)
Yep, tried that. It says that the part is already precise, and that no further action is required, but it's still invalid.

cheers

RE: ABAQUS invalid entity messages....

Sounds a bit strange... What does it say in the message area when you right click on the part name in the model tree and choose "query" and also "update validity"?

RE: ABAQUS invalid entity messages....

Maybe you should try a different file format instead of IGES.

RE: ABAQUS invalid entity messages....

(OP)
Thanks for the replies, but still no luck yet.....
When i run a query it says:

Part: "part2-new",  Modeling space: 3D,  Type: Deformable
Status: Invalid
It is a shell part(126 shell faces, 1464 edges, 1464 vertices)

It should be a solid part so i'm not sure if this needs changing also, I've tried importing in .sat format and exactly the same thing occurs.

RE: ABAQUS invalid entity messages....

You will probably need to fiddle around with virtual topology and the "repair geometry" tools to remove slivers, redundant edges and 'create solid from shell' etc.  I think what has happened is your edges havenot joined up properly as a result of inaccuracies and rounding off errors.

Depending on the problems ensuing form importing from SW, it is often easier to start from scratch in abaqus.

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