# Modulus of rupture calculator - Calculate Flexure / Torsional Strength

Modulus of Rupture is an ultimate strength determined in a flexure or torsion test. In a flexure bending test, it is the maximum fiber stress at failure. In a torsion test, it is the maximum shear stress in the extreme fiber of a circular member at failure. Alternate terms are flexural bending strength and Torsional Strength.

## Modulus of rupture calculator

Modulus of Rupture is an ultimate strength determined in a flexure or torsion test. In a flexure bending test, it is the maximum fiber stress at failure. In a torsion test, it is the maximum shear stress in the extreme fiber of a circular member at failure. Alternate terms are flexural bending strength and Torsional Strength.

Code to add this calci to your website

**Formula Used:**
M = ( 3 * P * L ) / ( 2 * b * d^{2} )
Where,
M = Modulus Of Rupture
P = Breaking Load
L = Distance Between Knife Edges on which the Sample is Supported
b = Average Specimen Breadth
d = Average Specimen Depth
In general Modulus of Rupture is used in both flexure bending and torsional test.