Plate Slenderness Factor Formula

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Plate Slenderness Factor is a function of the width/thickness (b/t) ratio of a slender plate cross sectional element. Check FAQs
λ=(1.052k)wtfemaxEs
λ - Plate Slenderness Factor?k - Local Buckling Coefficient?wt - Flat Width Ratio?femax - Maximum Compressive Edge Stress?Es - Modulus of Elasticity for Steel Elements?

Plate Slenderness Factor Example

With values
With units
Only example

Here is how the Plate Slenderness Factor equation looks like with Values.

Here is how the Plate Slenderness Factor equation looks like with Units.

Here is how the Plate Slenderness Factor equation looks like.

0.3265Edit=(1.0522Edit)13Edit228Edit200000Edit
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Plate Slenderness Factor Solution

Follow our step by step solution on how to calculate Plate Slenderness Factor?

FIRST Step Consider the formula
λ=(1.052k)wtfemaxEs
Next Step Substitute values of Variables
λ=(1.0522)13228MPa200000MPa
Next Step Convert Units
λ=(1.0522)132.3E+8Pa2E+11Pa
Next Step Prepare to Evaluate
λ=(1.0522)132.3E+82E+11
Next Step Evaluate
λ=0.326510024838442
LAST Step Rounding Answer
λ=0.3265

Plate Slenderness Factor Formula Elements

Variables
Functions
Plate Slenderness Factor
Plate Slenderness Factor is a function of the width/thickness (b/t) ratio of a slender plate cross sectional element.
Symbol: λ
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Local Buckling Coefficient
Local Buckling Coefficient is the factor when thin cold form structures are subjected to local buckling.
Symbol: k
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Flat Width Ratio
Flat Width Ratio is the ratio of width w of a single flat element to the thickness t of the element.
Symbol: wt
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Maximum Compressive Edge Stress
Maximum Compressive Edge Stress is defined as the largest compressive stress along the laminar edges of the structural element.
Symbol: femax
Measurement: StressUnit: MPa
Note: Value should be greater than 0.
Modulus of Elasticity for Steel Elements
The Modulus of Elasticity for Steel Elements is the measure of the stress–strain relationship on the object.
Symbol: Es
Measurement: PressureUnit: MPa
Note: Value should be greater than 0.
sqrt
A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.
Syntax: sqrt(Number)

Other formulas in Cold Formed or Light Weighted Steel Structures category

​Go Allowable Design Strength
Ra=Rnfs
​Go Nominal Strength using Allowable Design Strength
Rn=fsRa
​Go Minimum Allowable Moment of Inertia
Imin=1.83(t4)(wt2)-144
​Go Flat Width Ratio of Stiffened Element using Moment of Inertia
wt=(Imin1.83t4)2+144

How to Evaluate Plate Slenderness Factor?

Plate Slenderness Factor evaluator uses Plate Slenderness Factor = (1.052/sqrt(Local Buckling Coefficient))*Flat Width Ratio*sqrt(Maximum Compressive Edge Stress/Modulus of Elasticity for Steel Elements) to evaluate the Plate Slenderness Factor, The Plate Slenderness Factor is the value which relates buckling coefficient, width to thickness ratio of section, compressive edge stress and modulus of elasticity. Plate Slenderness Factor is denoted by λ symbol.

How to evaluate Plate Slenderness Factor using this online evaluator? To use this online evaluator for Plate Slenderness Factor, enter Local Buckling Coefficient (k), Flat Width Ratio (wt), Maximum Compressive Edge Stress (femax) & Modulus of Elasticity for Steel Elements (Es) and hit the calculate button.

FAQs on Plate Slenderness Factor

What is the formula to find Plate Slenderness Factor?
The formula of Plate Slenderness Factor is expressed as Plate Slenderness Factor = (1.052/sqrt(Local Buckling Coefficient))*Flat Width Ratio*sqrt(Maximum Compressive Edge Stress/Modulus of Elasticity for Steel Elements). Here is an example- 0.32651 = (1.052/sqrt(2))*13*sqrt(228000000/200000000000).
How to calculate Plate Slenderness Factor?
With Local Buckling Coefficient (k), Flat Width Ratio (wt), Maximum Compressive Edge Stress (femax) & Modulus of Elasticity for Steel Elements (Es) we can find Plate Slenderness Factor using the formula - Plate Slenderness Factor = (1.052/sqrt(Local Buckling Coefficient))*Flat Width Ratio*sqrt(Maximum Compressive Edge Stress/Modulus of Elasticity for Steel Elements). This formula also uses Square Root Function function(s).
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