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Example calculation

Calculation of creep relaxation of stresses in flange bolts

Attention!
This calculation is only a simplified estimation, and does not replace a detailed design calculation.

Input data

  Material    
  Design temperature Td   °C
  Design life tDL   h
  Tensile stress at the end of life σEoL   N/mm²
  Root diameter of a bolt d3   mm
  Number of bolts nB    
  Required bolting force at the end of life FEoL   kN
 
   
 

Results

  Required bolting force at the start of life FSoL   kN
  Tensile stress at the start of life σSoL   N/mm²
 

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