Bending Stress Formula

Fx Copy
LaTeX Copy
The Bending Stress is the normal stress that is induced at a point in a body subjected to loads that cause it to bend. Check FAQs
σb=MbyI
σb - Bending Stress?Mb - Bending Moment?y - Distance from Neutral Axis?I - Moment of Inertia?

Bending Stress Example

With values
With units
Only example

Here is how the Bending Stress equation looks like with Values.

Here is how the Bending Stress equation looks like with Units.

Here is how the Bending Stress equation looks like.

64.6714Edit=450Edit503Edit3.5Edit
You are here -
HomeIcon Home » Category Engineering » Category Mechanical » Category Strength of Materials » fx Bending Stress

Bending Stress Solution

Follow our step by step solution on how to calculate Bending Stress?

FIRST Step Consider the formula
σb=MbyI
Next Step Substitute values of Variables
σb=450N*m503mm3.5kg·m²
Next Step Convert Units
σb=450N*m0.503m3.5kg·m²
Next Step Prepare to Evaluate
σb=4500.5033.5
Next Step Evaluate
σb=64.6714285714286Pa
LAST Step Rounding Answer
σb=64.6714Pa

Bending Stress Formula Elements

Variables
Bending Stress
The Bending Stress is the normal stress that is induced at a point in a body subjected to loads that cause it to bend.
Symbol: σb
Measurement: PressureUnit: Pa
Note: Value should be greater than 0.
Bending Moment
The Bending Moment is the reaction induced in a structural element when an external force or moment is applied to the element, causing the element to bend.
Symbol: Mb
Measurement: Moment of ForceUnit: N*m
Note: Value should be greater than 0.
Distance from Neutral Axis
The Distance from Neutral Axis is defined as the distance from an axis in the cross section of a beam or shaft along which there are no longitudinal stresses or strains.
Symbol: y
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Moment of Inertia
Moment of Inertia is the measure of the resistance of a body to angular acceleration about a given axis.
Symbol: I
Measurement: Moment of InertiaUnit: kg·m²
Note: Value should be greater than 0.

Other formulas in Stress category

​Go Beam Shear Stress
𝜏=ΣSAyIt
​Go Bulk Stress
Bstress=N.FAcs
​Go Direct Stress
σ=PaxialAcs
​Go Maximum Shearing Stress
σ1=1.5VAcs

How to Evaluate Bending Stress?

Bending Stress evaluator uses Bending Stress = Bending Moment*Distance from Neutral Axis/Moment of Inertia to evaluate the Bending Stress, The Bending Stress formula is defined as the normal stress that is induced at a point in a body subjected to loads that cause it to bend. Bending Stress is denoted by σb symbol.

How to evaluate Bending Stress using this online evaluator? To use this online evaluator for Bending Stress, enter Bending Moment (Mb), Distance from Neutral Axis (y) & Moment of Inertia (I) and hit the calculate button.

FAQs on Bending Stress

What is the formula to find Bending Stress?
The formula of Bending Stress is expressed as Bending Stress = Bending Moment*Distance from Neutral Axis/Moment of Inertia. Here is an example- 36.216 = 450*0.503/3.5.
How to calculate Bending Stress?
With Bending Moment (Mb), Distance from Neutral Axis (y) & Moment of Inertia (I) we can find Bending Stress using the formula - Bending Stress = Bending Moment*Distance from Neutral Axis/Moment of Inertia.
Can the Bending Stress be negative?
No, the Bending Stress, measured in Pressure cannot be negative.
Which unit is used to measure Bending Stress?
Bending Stress is usually measured using the Pascal[Pa] for Pressure. Kilopascal[Pa], Bar[Pa], Pound Per Square Inch[Pa] are the few other units in which Bending Stress can be measured.
Copied!