Calculate Elongation from Stress-Strain Curve
Calculating elongation from a stress-strain curve is crucial in materials science and engineering to understand the deformation behavior of materials. It helps in designing structures, predicting material failure, and optimizing material usage.
- Enter the stress value in MPa.
- Enter the modulus of elasticity in GPa.
- Click ‘Calculate’.
The formula to calculate elongation is:
Elongation = (Stress / Modulus of Elasticity) * 100
The calculation is performed using JavaScript and the result is displayed in the ‘Results’ section.
Real-World Examples
| Material | Stress (MPa) | Modulus of Elasticity (GPa) | Elongation (%) |
|---|---|---|---|
| Steel | 200 | 200 | 1.00 |
| Aluminum | 100 | 70 | 1.43 |
| Rubber | 5 | 0.05 | 100.00 |
Comparison of Materials
| Material | Elongation (%) |
|---|---|
| Steel | 1.00 |
| Aluminum | 1.43 |
| Rubber | 100.00 |
Expert Tips
- Always use accurate values for stress and modulus of elasticity for precise results.
- Consider the temperature and strain rate effects on the modulus of elasticity.
- For materials with non-linear stress-strain behavior, use true stress and true strain.
What is the difference between engineering strain and true strain?
Engineering strain is calculated based on the original dimensions of the material, while true strain is calculated based on the current dimensions.
How does temperature affect the modulus of elasticity?
In general, as temperature increases, the modulus of elasticity decreases. This is due to the increased thermal energy causing the material to soften.
Engineering ToolBox – Modulus of Elasticity
Engineering Equations – Stress-Strain Curve