1. What is Elongation from Strain?

Elongation from strain is a measure of how much a material stretches under stress. It's calculated by multiplying the strain (a dimensionless measure of deformation) by the original length of the material.

2. How Does the Calculator Work?

The calculator uses the elongation formula:

Where:

• \( \delta \) — Elongation (meters)
• \( \epsilon \) — Strain (dimensionless)
• \( L \) — Original length (meters)

Explanation: Strain represents the fractional change in length, so multiplying by the original length gives the absolute change in length (elongation).

3. Importance of Elongation Calculation

Details: Calculating elongation is crucial in materials science and engineering for designing structures, predicting material behavior under load, and ensuring safety in mechanical systems.

4. Using the Calculator

Tips: Enter strain as a decimal (e.g., 0.002 for 0.2% strain) and original length in meters. Both values must be valid (length > 0).

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between strain and elongation?
A: Strain is the relative deformation (change in length divided by original length), while elongation is the absolute change in length.

Q2: What are typical strain values for common materials?
A: Metals typically have strains < 0.005 before yielding, while rubber can have strains > 1 before breaking.

Q3: Can this formula be used for compression?
A: Yes, but strain would be negative for compression, resulting in negative elongation (shortening).

Q4: Does this formula work for large deformations?
A: For very large strains (>5%), engineering strain may not be accurate and true strain should be used.

Q5: How does temperature affect elongation?
A: Most materials expand with increasing temperature, which can be modeled as thermal strain.