Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Plate Buckling Deflection Function for Rayleigh Ritz Method

  1. Nov 17, 2015 #1
    G'Day Everybody, I am computing buckling of a rectangular(edges: a*b) specially orthotropic composite plate. The boundary conditions are clamped-clamped at the opposing loaded edges and the other two edges are free (also known as CFCF). After having the boundary conditions and the governing differential equation I to need to assume the deflection of the buckled shape in order to apply Rayleigh Ritz Method. At this point I would like to know if anybody can tell me that the following shape function is correct or not:

    w(x,y)=A*(1-cos(2*pi*m*x/a)

    ,where:
    A: is to be determined at afterwards
    m: Natural for Buckling

    or should be the following, du to the modeshape in y-direction(w(y)=A):

    w(x,y)=A*(1-cos(2*pi*m*x/a)*A

    I assumed it to be correct but the following calculations where simplified so much that I am not sure anymore.
    Any help would be greatly appreciated.

    Thanks in advance.
    Sam
     
  2. jcsd
  3. Nov 22, 2015 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Plate Buckling Deflection Function for Rayleigh Ritz Method
  1. Buckling plate (Replies: 4)

Loading...