×
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

door dent FEA.....

door dent FEA.....

door dent FEA.....

(OP)
Hello,
I am trying to simulate the denting of a car door using the LS-Dyna solver and the implicit method or the explicit method. This denting is a low load small displacement type of event (quasi-static). This is to find the weakest spot on a door outer panel. Any references which specify the process would be greatly appreciated. Also, any individual advice would be very helpful too.

Greg.........

RE: door dent FEA.....

It's been a long time since I've used LS-Dyna so I'll leave that part of the question to others.

To determine the weakest spot on a door panel I would employ optimization techniques. Allow the optimization to modify the indenter location to maximize or minimise the objective function. Your opbjective function could be: minimize load for onset of placiticty, maximize placicity with a given load, maximize residual deformation after load is removed.

What optimization strategy you should choose will be highly dependent on how continuous your design space is.

I hope this helps.

Thank you.

Rob Stupplebeen
OptimalDevice.com
My Personal WP

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