Input data





 Time point 1

 Time point 2



 Stress components 
 σ_{x}





 N/mm²

σ_{y}





 N/mm²

σ_{z}





 N/mm²

τ_{xy}





 N/mm²

τ_{yz}





 N/mm²

τ_{zx}





 N/mm²

 Maximum cycle temperature 
 t_{}





 °C

 Material group 








 R_{p}



 N/mm²

 Tensile strength at room temperature 
 R_{m20}



 N/mm²

 Loadings type 






 Surface roughness 
 R_{z}



 µm

 Actual wall thickness 
 e_{n}



 mm

 Welded joint class 




 see Table 184

 Calculation theory 









Calculation

 Decisive calculation temperature 
 t*_{}



 °C



 R_{p/t*}



 N/mm²

 Reference stress amplitude 
 Δσ_{}



 N/mm²

 Surface influence factor 
 f_{s}





 wall thickness influence factor 
 f_{e}





 Mean stress influence factor 
 f_{m}





 Temperature influence factor 
 f_{t*}





 k_{e/v}– factor 
 k_{e/v}






Results

 Permissible load cycles number 
 N_{all}




