How Do I Calculate The Proportional Limit

Introduction & Importance

Proportional limit, also known as the elastic limit, is a crucial property in materials science…

How to Use This Calculator

1. Enter the Ultimate Tensile Strength (UTS) in MPa.
2. Enter the Ultimate Strain (εu) as a decimal.
3. Click ‘Calculate’.

Formula & Methodology

The proportional limit (σp) can be calculated using the formula:

σp = UTS * εp

Where εp is the proportional strain, calculated as:

εp = εu / 2

For more detailed information, see the ASM International’s guide.

Interactive FAQ

What is the difference between proportional limit and yield strength?

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