Elastic Critical Buckling Load Formula

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The Buckling Load is the load at which the column starts buckling. The buckling load of a given material depends on the Slenderness ratio, Area of a cross-section, and Modulus of Elasticity. Check FAQs
PBuckling Load=π2EA(Lrgyration )2
PBuckling Load - Buckling Load?E - Modulus of Elasticity?A - Column Cross-Sectional Area?L - Effective Length of Column?rgyration - Radius of Gyration of Column?π - Archimedes' constant?

Elastic Critical Buckling Load Example

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With units
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Here is how the Elastic Critical Buckling Load equation looks like with Values.

Here is how the Elastic Critical Buckling Load equation looks like with Units.

Here is how the Elastic Critical Buckling Load equation looks like.

25.9461Edit=3.1416250Edit700Edit(3000Edit26Edit)2
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Elastic Critical Buckling Load Solution

Follow our step by step solution on how to calculate Elastic Critical Buckling Load?

FIRST Step Consider the formula
PBuckling Load=π2EA(Lrgyration )2
Next Step Substitute values of Variables
PBuckling Load=π250MPa700mm²(3000mm26mm)2
Next Step Substitute values of Constants
PBuckling Load=3.1416250MPa700mm²(3000mm26mm)2
Next Step Prepare to Evaluate
PBuckling Load=3.1416250700(300026)2
Next Step Evaluate
PBuckling Load=25.9460933477527N
LAST Step Rounding Answer
PBuckling Load=25.9461N

Elastic Critical Buckling Load Formula Elements

Variables
Constants
Buckling Load
The Buckling Load is the load at which the column starts buckling. The buckling load of a given material depends on the Slenderness ratio, Area of a cross-section, and Modulus of Elasticity.
Symbol: PBuckling Load
Measurement: ForceUnit: N
Note: Value should be greater than 0.
Modulus of Elasticity
The Modulus of Elasticity is the measure of the stiffness of a material. It is the slope of stress and strain diagram up to the limit of proportionality.
Symbol: E
Measurement: StressUnit: MPa
Note: Value should be greater than 0.
Column Cross-Sectional Area
Column Cross-Sectional Area is the area of a two-dimensional shape that is obtained when a three-dimensional object is sliced perpendicular to some specified axis at a point.
Symbol: A
Measurement: AreaUnit: mm²
Note: Value should be greater than 0.
Effective Length of Column
The Effective Length of Column can be defined as the length of an equivalent pin-ended column having the same load-carrying capacity as the member under consideration.
Symbol: L
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Radius of Gyration of Column
The Radius of Gyration of Column about the axis of rotation is defined as the radial distance to a point which would have a moment of inertia the same as the body's actual distribution of mass.
Symbol: rgyration
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Archimedes' constant
Archimedes' constant is a mathematical constant that represents the ratio of the circumference of a circle to its diameter.
Symbol: π
Value: 3.14159265358979323846264338327950288

Other formulas in Slender Columns category

​Go Cross-Sectional Area given Elastic Critical Buckling Load
A=PBuckling Load(Lrgyration )2π2E
​Go Radius of Gyration of Column given Elastic Critical Buckling Load
rgyration =PBuckling LoadL2π2EA
​Go Slenderness Ratio given Elastic Critical Buckling Load
λ=π2EAPBuckling Load

How to Evaluate Elastic Critical Buckling Load?

Elastic Critical Buckling Load evaluator uses Buckling Load = (pi^2*Modulus of Elasticity*Column Cross-Sectional Area)/(Effective Length of Column/Radius of Gyration of Column)^2 to evaluate the Buckling Load, The Elastic Critical Buckling Load formula is defined as the greatest load applied on pin ended columns that cause lateral deflection i.e., failure due to buckling. Buckling Load is denoted by PBuckling Load symbol.

How to evaluate Elastic Critical Buckling Load using this online evaluator? To use this online evaluator for Elastic Critical Buckling Load, enter Modulus of Elasticity (E), Column Cross-Sectional Area (A), Effective Length of Column (L) & Radius of Gyration of Column (rgyration ) and hit the calculate button.

FAQs on Elastic Critical Buckling Load

What is the formula to find Elastic Critical Buckling Load?
The formula of Elastic Critical Buckling Load is expressed as Buckling Load = (pi^2*Modulus of Elasticity*Column Cross-Sectional Area)/(Effective Length of Column/Radius of Gyration of Column)^2. Here is an example- 2.6E+7 = (pi^2*50000000*0.0007)/(3/0.026)^2.
How to calculate Elastic Critical Buckling Load?
With Modulus of Elasticity (E), Column Cross-Sectional Area (A), Effective Length of Column (L) & Radius of Gyration of Column (rgyration ) we can find Elastic Critical Buckling Load using the formula - Buckling Load = (pi^2*Modulus of Elasticity*Column Cross-Sectional Area)/(Effective Length of Column/Radius of Gyration of Column)^2. This formula also uses Archimedes' constant .
Can the Elastic Critical Buckling Load be negative?
No, the Elastic Critical Buckling Load, measured in Force cannot be negative.
Which unit is used to measure Elastic Critical Buckling Load?
Elastic Critical Buckling Load is usually measured using the Newton[N] for Force. Exanewton[N], Meganewton[N], Kilonewton[N] are the few other units in which Elastic Critical Buckling Load can be measured.
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