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Example calculation

Simplified elasto–plastic fatigue analysis

according to KTA-rules (KTA 3211.2)

Input data

  Kind of material    
  Elastic modulus E   N/mm²
  Tensile strength Rm   N/mm²
  Equivalent stress value Sm   N/mm²
  Half stress intensity range Sa   N/mm²
  Stress range Sn   N/mm²


  Sa*   N/mm²
  Permissible stress cycles number Nzul
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