How to Calculate Youngs Modulus
What is Youngs Modulus?
Young's modulus (E) measures resistance to axial deformation: E = stress / strain; defines material stiffness.
Formula
Calculate E = σ/ε
- E
- σ/ε — σ/ε
Step-by-Step Guide
- 1Input axial stress and resulting strain
- 2Calculate E = σ/ε
- 3Results show material stiffness, usually in GPa
Worked Examples
Input
Steel: E ≈ 200 GPa
Result
Aluminum: E ≈ 70 GPa
Steel ~3× stiffer
Common Mistakes to Avoid
- ✕Confusing with strength (high E ≠ strong)
- ✕Not using consistent units
Frequently Asked Questions
Does Young's modulus depend on material processing?
Slightly; annealing can reduce E, cold-working can increase it, but primarily material-dependent.
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