×
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

Buckling of compression plate in composite section

Buckling of compression plate in composite section

Buckling of compression plate in composite section

(OP)
Hi All,

I have an unusual problem which I am trying to get some guidance on. I have a composite section which is being used in bending. The section comprises a glass fibre and mineral wool filled core with thin steel plates bonded either side. I am trying to establish how much buckling restraint the core will give to the plate in compression. Given the compressive stiffness of the core and adequate bond, I am looking for a means of estimating the transverse restraint that the core would provide to the plate between its edge restraints. I could then estimate any extra capacity beyond that for a plate with similar edge restraint conditions but no uniform transverse restraint to the plate surface. Any Guidance anyone can suggest for this would be much appreciated!

Thanks,
M

 

RE: Buckling of compression plate in composite section

I would start by using the formulae for buckling in a column with lateral elastic restraint, that are found in many books on elastic stability (Timoshenko&Gere 2nd ed.has it in 2.10).
Don't know if something similar exists in the literature for plates, but the analysis as a beam for bending in one direction only should give a reasonable estimate.

prex
http://www.xcalcs.com : Online engineering calculations
http://www.megamag.it : Magnetic brakes and launchers for fun rides
http://www.levitans.com : Air bearing pads

RE: Buckling of compression plate in composite section

(OP)
Thanx prex, I'll check these out.

RE: Buckling of compression plate in composite section

you could consider the two faces alone (the core is effectively a spacer) ... you could calc I (per inch width), t*d^2/2, and a column allowable.

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