Maximum height of a uniform vertical column

Click For Summary
SUMMARY

The maximum height of a uniform vertical column made from any material is determined by its density and the material's limit of durability, independent of cross-sectional area. For steel with a density of 7.8 x 103 kg/m3, the height can be calculated using the formula l = σ/(g*ρ). Similarly, for granite with a density of 2.7 x 103 kg/m3, the same formula applies. The limit of durability (σ) must be known to perform these calculations accurately.

PREREQUISITES
  • Understanding of material properties, specifically density and limit of durability.
  • Familiarity with basic physics concepts, including stress and gravitational force.
  • Knowledge of the formula l = σ/(g*ρ) for calculating maximum column height.
  • Ability to perform calculations involving units of measurement (kg/m3, N/m2).
NEXT STEPS
  • Research the limit of durability for various materials, including steel and granite.
  • Learn about the relationship between stress, strain, and material failure.
  • Explore advanced topics in structural engineering related to column stability.
  • Investigate the effects of cross-sectional area on load distribution in columns.
USEFUL FOR

Engineers, architects, and students in materials science or structural engineering who are interested in understanding the mechanics of vertical columns and material limits.

physicsss
Messages
319
Reaction score
0
There is a maximum height of a uniform vertical column made of any material that can support itself without breaking, and it is independent of the cross-sectional area.

(a) Calculate this height for steel (density 7.8 103 kg/m3).

(b) Calculate this height for granite (density 2.7 103 kg/m3).
 
Physics news on Phys.org
You have to know limit of durability of material
M*g=σ*s
M=ρ*l*S
g*l*ρ=σ
l=σ/(g*ρ), where ρ=density, σ=limit of durability (maximal stress), S=Area
 
How do I find the limit durability of material?
 

Similar threads

Replies
16
Views
6K
  • · Replies 5 ·
Replies
5
Views
5K
  • · Replies 2 ·
Replies
2
Views
7K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 7 ·
Replies
7
Views
4K
Replies
2
Views
8K
Replies
1
Views
2K
  • · Replies 4 ·
Replies
4
Views
5K
  • · Replies 13 ·
Replies
13
Views
3K
Replies
1
Views
6K