Equations · equation
Young's Modulus
Materials Science · 1807
- Equation
- E = σ/ε
- Field
- Materials Science
- Named After
- Thomas Young
- Symbols
- σ stress (force per unit area) · ε strain (fractional stretch) · E the stiffness of the material itself, independent of the object's shape
- Year
- 1807
Significance
Hooke's law made a property of matter rather than of a particular spring — rubber's E is measured in megapascals, steel's in hundreds of gigapascals, diamond's beyond a terapascal. The number engineers reach for first when choosing what to build with.
Referenced by
element
equation
skill
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