Buckling Load of Non Prismatic Columns

[E720]

Does anyone have any information/advice on determining the buckling load of non-prismatic columns. I seem to remember doing this exercise in college (possibly involving integrating 1/EI(x) over the length?) but can't find any notes or anything in any of my textbooks on this.

 

[dhengr]

E720:
Take a look a Newmark’s Methods. It is a stepwise numerical integration technique, particularly well suited for these types of problems.

 

[IDS]

This was discussed here:

https://www.eng-tips.com/viewthread.cfm?qid=278129

Which led to my spreadsheet here:
Buckling of columns with varying cross section

Doug Jenkins
Interactive Design Services

http://newtonexcelbach.wordpress.com/