Column buckling in a pin jointed structure

  • Thread starter xJJx
  • Start date
  • #1
56
2
<< Mentor Note -- thread moved from the schoolwork forums to the ME forum because it's more of a general question >>

Hi, in these column bucking notes (photo attached below) it says that bar BC will buckle first out of all the other bars in compression, but it does not explain why. I know it has the highest compressive force in it and also the longer length, but what if the bar had the highest comrpessive force but the shortest length? Would it still be the critical bar?
 

Attachments

  • 13AE4AE4-5959-4C46-9F39-E19B215141DB.jpeg
    13AE4AE4-5959-4C46-9F39-E19B215141DB.jpeg
    26.8 KB · Views: 261
Last edited by a moderator:

Answers and Replies

  • #2
PhanthomJay
Science Advisor
Homework Helper
Gold Member
7,166
507
It didn't explain why, but you did nicely. If there was a different problem where there were to be a larger force in a compression member with smaller length, you'd have to check that one also to see which controls for the compression case. Or you might have a smaller load and longer length that controls. While in any case not exceeding the yield or breaking or failure compressive stress of the material.
 

Related Threads on Column buckling in a pin jointed structure

  • Last Post
Replies
7
Views
5K
Replies
5
Views
8K
Replies
0
Views
1K
Replies
7
Views
4K
Replies
2
Views
854
Replies
2
Views
4K
Replies
3
Views
235
Replies
3
Views
1K
  • Last Post
Replies
1
Views
593
  • Last Post
Replies
3
Views
2K
Top