Questions tagged [buckling]
The buckling tag has no usage guidance.
65
questions
0
votes
1
answer
31
views
Buckling length of continuous steel H columns in multi story buildings
I have seen that steel columns in multiple story buildings span multiple stories, in that case how do you calculate the buckling length for the column? do you take the whole column's height, or just ...
0
votes
1
answer
59
views
Minimal width of a carbon fiber shell to hold a flying airship
In Aves Æternæ: Building Perpetual Flying Machines you can find the specs for an airship with a rigid carbon fiber shell. It would be around 4m long and 2m wide and high, weigh around 10 kg empty (0 ...
0
votes
2
answers
190
views
Hollow circular columns vs solid circular columns of exactly the same mass and length, which resist buckling better?
I've seen a number of mentions in the tensegrity literature asserting (without proof or reference) that, in the context of a tensegrity rod under pure axial compression, hollow columns perform better ...
0
votes
1
answer
44
views
Is there a way to program a buckling analysis of an arbitrary shape, using a standard programming language/libraries (not Abaqus)?
I am trying to develop a program in Python that runs a few different basic analyses for optimization like minimizing compliance and buckling. I want to use machine learning to try to develop a fast (...
0
votes
2
answers
36
views
Can a buckling steel column fracture on multiple points?
When a column buckles, then yields, and finally fractures fractures, along the most stressed point, this will initially reduce the axial and bending strains along other points. The apparent conclusion ...
0
votes
1
answer
137
views
Determining the critical load of a fixed beam with non-uniform cross-section?
I am a computer scientist, not a mechanical engineer, so it is absolutely possible that I am missing some basic understanding here.
I have a beam that is fixed in both ends and my goal is to ...
0
votes
1
answer
50
views
How to calculate maximum buckling load for hydrofoil strut?
I am a hobbyist and in the process of designing a human-powered hydrofoil (see Hydroped for reference) I'm kind of stuck in the calculation of the the maximum buckling load for a strut.
The strut is ...
1
vote
5
answers
75
views
Describing 180 degree arcing/deflection of wire supported vertically at one end
I am trying to understand how to describe and calculate the shape a length of piano wire makes from its own weight when supported vertically at only one end. Is it a catenary or a parabola? ...
0
votes
1
answer
56
views
What is the critical buckling force needed to be applied on a system of made out of two parts?
What is the critical buckling force needed to be applied on a system of made out of two parts?
The parts of the system are as depicted in the picture:
incompressible elastic beam - on top
...
0
votes
2
answers
121
views
How to find the tension in wires before a column buckles
I already have the solution for this problem, I just need some explanation about a certain part. Can someone please explain the highlighted section, how do I obtain the tension formula used here?
0
votes
1
answer
108
views
Why isn't lateral torsional buckling of rectangular timber members dependent on torsional stiffness?
I'm reading about buckling of timber members from Eurocode 5: Design of timber structures part 1.
Section 6.3.3 gives instructions to check the stability of beams subject to compression, bending or ...
1
vote
1
answer
115
views
Stability of solid rectangular wood member
I'm reading about buckling of timber members from Eurocode 5: Design of timber structures part 1.
Formula 6.30 gives the relative slenderness of a member:
$$\lambda_{rel.m} = \sqrt{\frac{f_{m,k}}{\...
0
votes
1
answer
531
views
Stress concentrations around rivets in compression
The stress concetration factor for an unfilled hole is around 3, but it decreases when a rivet is present. What factor can we expect for a hole with a rivet in it in compression?
0
votes
2
answers
938
views
Calculation of critical column buckling load using Johnson's formula, but with eccentricity?
I've got partial answers but nothing comprehensive found online - most online resources focus on Euler's buckling formula which isn't appropriate for shorter columns.
Data I have collected:
Column is ...
4
votes
2
answers
307
views
Do yielded columns buckle?
A sufficiently slender column will fail under compression below yield stress by bowing, releasing it's axial elastic strain. This is called buckling. Depending on the slenderness of the column, the ...