×
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

Contact modellization

Contact modellization

Contact modellization

(OP)
Hello to everybody,

I am new with Abaqus, i am making a static analysis on a cylindrical fuselage of a rocket with a cover. The rocket is attached to a subwing pylon that transmits an important load to the cover (by the rocket release mechanism)at the launch (that's an UAV launched by catapult). Well, i made the analysis, no error. Sounds fine, but i have just a doubt about contact modellization. Contact between cover internal surface and the edge of the cavity under the cover.
Cover is fastened to the fuselage in four points.
I used:
10 nodes tet elements
slaves surfaces with a finer mesh than master region
tg behavior: frictionless
normal behavior: hard
and: allow separation after contact - yes

Any suggestion from your experience about this? I'm reading the manual, it explains such things, but i am not really sure of what is better.
Than You
Marco

RE: Contact modellization

(OP)
Hello there,

I have a question...i refined my model...and after analysis y see that deformed shape (at at the computed scale factor) shows a compenetration between fuselage board and the cover. I expected that forces and so desplacement would be trasmetted from one part to the other, in order to have the same grafic result. The fuselage, at taht point, in in "expansion", the cover is in compression, but they seem don't work togheter. I defined the contact as i said in the first post.
I appreciate every suggestion.

Thank You,

Marco

RE: Contact modellization

you better send some pics on the model

RE: Contact modellization

(OP)

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