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.**

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

ΔA = ^{ΔS} / _{τ}

Where;

ΔA = Area

τ = Shear Stress

ΔS = Shear Force

Let’s solve an example;

Find the area with a shear stress of 480 and a shear force of 120.

This implies that;

τ = Shear Stress = 480

ΔS = Shear Force = 120

ΔA = ^{ΔS} / _{τ}

ΔA = ^{480} / _{120}

ΔA = 4

Therefore, the **area **is **4.**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the shear stress.

To get the answer and workings of the shear stress using the **Nickzom Calculator – The Calculator Encyclopedia. **First, you need to obtain the app.

You can get this app via any of these means:

**Web** – https://www.nickzom.org/calculator-plus

To get access to the **professional **version via web, you need to **register** and **subscribe **for** NGN 1,500 **per** annum** to have utter access to all functionalities.

You can also try the **demo **version via https://www.nickzom.org/calculator

**Android (Paid)** – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)** – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)** – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to the **Calculator Map, **then click on **Geology**** **under **Add-on.**

Now, Click on **Rock Mechanics**** **under **Geology**

Now, Click on **Shear**** Stress **under **Rock Mechanics**

The screenshot below displays the page or activity to enter your values, to get the answer for the shear stress according to the respective parameters which are the **shear**** force (ΔS)** and **area (ΔA).**

Now, enter the values appropriately and accordingly for the parameters as required by the **shear**** force (ΔS)** is **16 **and **area (ΔA)** is **30**.

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia solves for the shear stress and presents the formula, workings and steps too.