Menu

Buckling

Type of strut mounting F F F F β = 0.5 β = 0.7 β = 1 β = 2 A B C D
Type of strut mounting

Values for calculation

$ β $
$ S_{y} $ $ \mathrm{MPa} $
$ E $ $ \mathrm{MPa} $
$ F $ $ \mathrm{N} $
$ L $ $ \mathrm{mm} $
$ S $ $ \mathrm{mm^2} $
$ I $ $ \mathrm{mm^4} $
$ c $ $ \mathrm{mm} $
$ e $ $ \mathrm{mm} $
$ C_c $
$ S_F $

Calculation

Gyration radius

$$i=\sqrt{\cfrac{I}{S}}$$

Slenderness ratio

$$λ=\cfrac{L\cdot β}{i}$$

Eccentricity parameter

$$η=\cfrac{e\cdot c}{i^2}$$

$$η\geq 0.25$$

Maximal (critical) force

$\text{if }\ λ>0.282\cdot\sqrt{\cfrac{E\cdot S}{F}}$
$$F_{max}=S_{y}\cdot S/ \left[1+η\cdot\sec\left(\cfrac{λ}{2}\cdot\sqrt{\cfrac{\left|F_{max}\right|}{E\cdot S}}\right)\right]$$
$\text{else}$
$$F_{max}=S_{y}\cdot S/ \left[1+η\right]$$

$$\cfrac{F_{max}}{S_F}\cdot C_c\geq F$$