Boundary conditions for buckling of column

Click For Summary

Discussion Overview

The discussion revolves around the boundary conditions (BC) for buckling of columns, specifically comparing fixed-fixed and simply supported cases. Participants explore how displacement occurs when forces are applied to a column under these conditions.

Discussion Character

  • Debate/contested

Main Points Raised

  • One participant questions how displacement occurs for a fixed-fixed column when loads are applied, indicating a lack of clarity on the boundary conditions.
  • Another participant seeks clarification on whether both ends of the column are fixed while loads are applied.
  • A third participant expresses skepticism about the feasibility of applying loads to a column with both ends fixed, suggesting a different interpretation of the boundary conditions.
  • One participant proposes an alternative scenario where one end is fixed in both x and y directions while the other end is only fixed in y, allowing for buckling.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus, as there are competing interpretations of the boundary conditions and how they relate to the application of loads.

Contextual Notes

The discussion highlights potential ambiguities in the definitions of fixed and simply supported boundary conditions, as well as the implications for displacement and buckling behavior.

karthickaero1
Messages
2
Reaction score
0
For fixed-fixed BC's, i have to arrest x and y displ. For simply supported case, i have to arrest y displ. Then my doubt is, while applying force at the end of the column, how the displacement will happen for fixed-fixed column.
 
Physics news on Phys.org
You want to fix both ends and then apply loads to them?
 
yeah...that's my doubt...
 
I don't see how you want to call the ends fixed and apply loads to them simulateously. Are you sure that is what is being asked of you?
 
Travis_King said:
I don't see how you want to call the ends fixed and apply loads to them simulateously. Are you sure that is what is being asked of you?

I read it as one end being fixed in both x and y, and the other only in y, thus free to move so as to allow buckling, like http://upload.wikimedia.org/wikipedia/commons/5/54/Buckled_column.png" Is that the problem you're describing, karthickaero1?
 
Last edited by a moderator:

Similar threads

Undergrad Particle in Infinite Square Well
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Boundary conditions for a wooden board used for breaking in martial arts
  • · Replies 20 ·
Replies
20
Views
2K
Column under a concentric axial load (Buckling)
  • · Replies 7 ·
Replies
7
Views
6K
Engineering How to Find the First Buckling Load from the Deflection Equation?
  • · Replies 3 ·
Replies
3
Views
2K
Engineering Natural frequency of clamped-hinged column
  • · Replies 6 ·
Replies
6
Views
2K
Engineering Multi-point Boundary Value Problems Using Finite Difference Method
  • · Replies 3 ·
Replies
3
Views
3K
Graduate The boundary conditions in reference to Laplace's equation
  • · Replies 22 ·
Replies
22
Views
4K
Interpreting the Second Moment of Area and Euler's Formula Values
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Boundary conditions sufficient to ensure uniqueness of solution?
  • · Replies 4 ·
Replies
4
Views
3K
Understanding Bending Moments and Moment Equilibrium in Structural Analysis
  • · Replies 2 ·
Replies
2
Views
3K