# Disc compression springs (given the deflection of spring)

## Values for calculation

## Calculation

### Tensile stress

### Force

### Spring stiffness

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$$σ=\cfrac{E\cdot 10^3\cdot δ\cdot\left(1-2/3\cdot D_0/D\right)}{0.65\cdot\left(\cfrac{D}{2}\right)^2}\cdot f$$

$$σ\le σ_{adm}$$

$$F=\cfrac{δ^2}{1-2/3\cdot D_0/D}\cdot σ$$

$$k=\cfrac{F}{f\cdot 10^{-3}}$$