Enter the shear force, the first moment of area, a moment of inertia, and material thickness. The calculator will evaluate the shear stress acting on the material.

## Shear Stress Formula

The following equation can be used to calculate the shear stress acting on a straight beam.

s = (V*Q/I*t)

- Where s is the shear stress (N/m^2)
- V is the total shear force (N*m)
- Q is the first moment of area (m^3)
- I is the moment of inertia (m^4)
- t is the thickness of the material (m)

## Shear Stress Definition

Shear stress is stress seen in objects that is co-planar with the material cross-section. That is stress that is acting in the same direction as the cross-section. This stress is only one component of the total stress on an object under force.

## Shear Stree Example

How to calculate shear stress?

**First, determine the total shear force.**Measure the total shear force acting on the area.

**Next, determine the first moment of area.**Calculate the first moment of the area that the force is acting on.

**Next, determine the moment of inertia.**Calculate the moment of inertia of the object/surface.

**Next, determine the thickness.**Measure the thickness of the material.

**Finally, calculate the shear stress.**Using the formula above, calculate the shear stress.

## FAQ

**What is a shear stress?**

A shear stress is any stress that acts co-planar to a cross-sectional area that often causes the process of “shearing”.