The image above represents shear stress.

To compute for shear stress, two essential parameters are needed and these parameters are **Shear Force (ΔS) **and **Area (ΔA).**

The formula for calculating the shear stress:

τ = ^{ΔS} / _{ΔA}

Where:

τ = Shear Stress

ΔS = Shear Force

ΔA = Area

Let’s solve an example;

Find the shear stress when the shear force is 16 with an area of 30.

This implies that;

ΔS = Shear Force = 16

ΔA = Area = 30

τ = ^{ΔS} / _{ΔA}

τ = ^{16} / _{30}

τ = 0.53

Therefore, the **shear stress **is **0.53 Pa.**

**Calculating the Shear Force when the Shear Stress and Area is Given.**

ΔS = τ x ΔA

Where;

ΔS = Shear Force

τ = Shear Stress

ΔA = Area

Let’s solve an example;

Find the shear force with a shear stress of 40 and an area of 12.

This implies that;

τ = Shear Stress = 40

ΔA = Area = 12

ΔS = τ x ΔA

ΔS = 40 x 12

ΔS = 480

Therefore, the **Shear Force **is **480.**

Continue reading How to calculate and Solve for Shear Stress | Rock Mechanics