The image above represents crack opening displacement. To calculate crack opening displacement, two essential parameters are needed and these parameters are **Shear Modulus (G) **and **Yield Strength (Ïƒ _{ys}).**

**The formula for calculating crack opening displacement:**

d = ^{G} / 2Ïƒ_{ys}

Where:

d = Crack Opening Displacement (G)

G = Shear Modulus

Ïƒ_{ys} = Yield Strength

Let’s solve an example;

Find the crack opening displacement when the shear modulus is 12 and the yield strength is 4.

This implies that;

G = Shear Modulus = 12

Ïƒ_{ys} = Yield Strength = 4

d = ^{G} / 2Ïƒ_{ys}

So, d = ^{12} / _{2(4)}

d = ^{12} / _{8}

d = 1.5

Therefore, the **crack opening displacement **is **1.5 m.**

**Calculating the Shear Modulus when the Crack Opening Displacement and the Yield Strength are Given**

G = d x Ïƒ_{ys}

Where:

G = Shear Modulus

d = Crack Opening Displacement (G)

Ïƒ_{ys} = Yield Strength

Let’s solve an example;

Find the shear modulus when the crack opening displacement is 10 and the yield strength is 4.

This implies that;

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d = Crack Opening Displacement (G) = 10

Ïƒ_{ys} = Yield Strength = 4

G = d x Ïƒ_{ys}

That is, G = 10 x 4

G = 40

Therefore, the **shear modulus **is **40.**

Read more:Â How to Calculate and Solve for Shear Modulus | Mechanical Properties

**Calculating the Yield Strength when the Crack Opening Displacement and the Shear Modulus are Given**

Ïƒ_{ys} = ^{2G} / _{d}

Where:

Ïƒ_{ys} = Yield Strength

d = Crack Opening Displacement (G)

G = Shear Modulus

Let’s solve an example;

Find the yield strength when the crack opening displacement is 10 and the shear modulus is 15.

This implies that;

d = Crack Opening Displacement (G) = 10

G = Shear Modulus = 15

Ïƒ_{ys} = ^{2G} / _{d}

Then, Ïƒ_{ys} = ^{2(15)} / _{10}

Ïƒ_{ys} = ^{30} / _{10}

Ïƒ_{ys} = 3

Therefore, the **yield strength **is **3.**

Read more:Â How to Calculate and Solve for Crack Opening Displacement | Polymer Deformation

**How to Calculate Crack Opening Displacement in Polymer Deformation With Nickzom Calculator**

Nickzom Calculator â€“Â **The Calculator Encyclopedia** is capable of calculating the crack opening displacement.

To get the answer and workings of the crack opening displacement using the **Nickzom Calculator â€“ The Calculator Encyclopedia.Â **First, you need to obtain the app.

You can get this app via any of these means:

**Web**Â â€“Â https://www.nickzom.org/calculator-plus

To get access to theÂ **professionalÂ **version via web, you need toÂ **register**Â andÂ **subscribe **to have utter access to all functionalities.

You can also try theÂ **demoÂ **version viaÂ https://www.nickzom.org/calculator

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

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

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

Once, you have obtained the calculator encyclopedia app, proceed to theÂ **Calculator Map,Â **then click onÂ **Materials and MetallurgicalÂ **underÂ **Engineering****.**

Now, Click on **Polymer Deformation **underÂ **Materials and Metallurgical**

Now, Click on **Crack Opening Displacement** under **Polymer Deformation
**

The screenshot below displays the page or activity to enter your values, to get the answer for the crack opening displacement according to the respective parameter which is the **Shear Modulus (G) **and **Yield Strength (Ïƒ _{ys}).**

Now, enter the values appropriately and accordingly for the parameters as required by the **Shear Modulus (G)** is **12 **and **Yield Strength (Ïƒ _{ys})** is

**4**.

Finally, Click on Calculate

As you can see fromÂ the screenshot above,Â **Nickzom Calculator**â€“ The Calculator Encyclopedia solves for the crack opening displacement and presents the formula, workings and steps too.