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en:berechnungen:festigkeitsberechnung [2025/09/03 12:24] – [Shear Stress] neelesten:berechnungen:festigkeitsberechnung [2025/09/03 12:27] (aktuell) – [Shear Stress] neelest
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 $$K_2(d)=1-0,2 \frac{log(d/7,5\,mm)}{log(20)} \text{     with     } K_2(d>150\,mm)=0,8$$ $$K_2(d)=1-0,2 \frac{log(d/7,5\,mm)}{log(20)} \text{     with     } K_2(d>150\,mm)=0,8$$
  
-with the influence of the surface roughness $K_{F,\tau}=1$ and the influence of surface hardening $K_V = 1,15$ for nitrided surfaces.+as well as with the influence of surface roughness $K_{F,\tau}=1$ for polished surfaces and the influence of surface hardening $K_V$. $K_V$ ranges from 1.15 to 1.25 for nitrided surfaces, 1.2 to 2.1 for case-hardened surfaces, and 1.2 to 1.6 for induction-hardened surfaces. 
 +The values apply up to a diameter of 25 mm and decrease linearly beyond this value down to 1.0 at a diameter of 40 mm. For diameters above 40 mm, the value remains constant at 1.0.
  
-Finally, the shear stress, taking all influence factors into account, is given by:+The resulting shear stress, taking into account these influencing factors, is given by:
  
 $$\tau_{xy} = \tau_{max}=\tau_{nominal} \cdot K_\tau$$ $$\tau_{xy} = \tau_{max}=\tau_{nominal} \cdot K_\tau$$