The image above represents glide shear.

To compute for glide shear, two essential parameters are needed and these parameters are **Stacking Fault Energy (γ) **and **Varying Grain Constant (M’).**

The formula for calculating glide shear:

E = ^{γ} / _{M’}

Where:

E = Glide Shear

γ = Stacking Fault Energy

M’ = Varying Grain Constant

Let’s solve an example;

Find the glide shear when the stacking fault energy is 18 and the varying grain constant is 2.

This implies that;

γ = Stacking Fault Energy = 18

M’ = Varying Grain Constant = 2

E = ^{γ} / _{M’}

E = ^{18} / _{2}

E = 9

Therefore, the **glide shear **is **9 Pa.**

**Calculating the Stacking Fault Energy when the Glide Shear and the Varying Grain Constant is Given.**

γ = E x M’

Where;

γ = Stacking Fault Energy

E = Glide Shear

M’ = Varying Grain Constant

Let’s solve an example;

Find the stacking fault energy when the glide shear is 14 and the varying grain constant is 8.

This implies that;

E = Glide Shear = 14

M’ = Varying Grain Constant = 8

γ = E x M’

γ = 14 x 8

γ = 112

Therefore, the **stacking fault energy **is **112.**

Continue reading How to Calculate and Solve for Glide Shear | Fracture Mechanics