The image above represents the true stress.

To compute for the true stress, two essential parameters are needed and these parameters are **force (F)** and **instantaneous area (A _{i})**.

The formula for calculating true stress:

σ_{T} = ^{F} / _{Ai}

Where;

_{T} = True Stress

F = Force

A_{i} = Instantaneous Area

Let’s solve an example;

Find the true stress when the instantaneous area is 60 with a force of 25.

This implies that;

F = Force = 25

A_{i} = Instantaneous Area = 60

σ_{T} = ^{F} / _{Ai}

σ_{T} = ^{25} / _{60}

σ_{T} = 0.416

Therefore, the **true stress** is **0.416 Pa**.

**Calculating the Force when True Stress and Instantaneous Area is Given.**

F = A_{i} x σ_{T}

Where;

F = Force

σ_{T} = True Stress

A_{i} = Instantaneous Area

Let’s solve an example;

Find the force when the instantaneous area is 30 with a true stress of 15.

This implies that;

σ_{T} = True Stress = 15

A_{i} = Instantaneous Area = 30

F = A_{i} x σ_{T}

F = 30 x 15

F = 450

Therefore, the **force** is **450.**

Continue reading How to Calculate and Solve for True Stress | The Calculator Encyclopedia