Important Elasticity Shortcuts

Important Elasticity Shortcuts

### Shortcut 1

Stiffness comparison:

$$Y_1>Y_2$$

means:

Material 1 is more rigid.

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### Shortcut 2

For same force:

$$\Delta L\propto\frac{L}{AY}$$

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### Shortcut 3

For same wire:

$$Y=\frac{FL}{A\Delta L}$$

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### Shortcut 4

Elastic energy:

$$U\propto(\Delta L)^2$$