How Do J.B. Johnson and Tetmajer's Buckling Formulas Differ?

[MatsNorway]

Hi Guys.

I was wondering if anyone had any info about buckling and the different formulas used. My school book had Tetmajer referenced but it seems a J.B. Johnson is also used a lot. So..

1. What are the difference in the formulas they use?

 

[NumericalFEA]

The most comprehensive ever resource on buckling in the whole internet is there: shellbuckling.com

 

[MatsNorway]

That is a messy page! But the /links page got more than i can look over in a day.. so thanks.

But i would prefer ofcs some non math talk about the topic. I see very little discussion around it with google.

 

[MatsNorway]

I am still curious about this if there is any mechanical engineers/building engineers out there that has experience in the field

 

[Dr.D]

J.B. Johnson I know; Tetmajer I've never heard about.

 

[MatsNorway]

Tetmajer improved upon Eulers work on buckling
Here is some.. if you want to go crazy. http://www.mitcalc.com/doc/buckling/help/en/bucklingtxt.htm
about tetmajer https://en.wikipedia.org/wiki/Ludwig_von_Tetmajer

 

[Dr.D]

J. B. Johnson is an empirical approach to dealing with buckling for small values of the slenderness ratio.