How to Achieve Valid Results in Durability Analysis From ANSYS

Fatigue analysis from finite element models is becoming increasingly accepted in the design process. The analysis is no longer limited to fatigue life calculations - output can now include safe working stresses, warranty claim curves, and the effects of high temperatures, manufacturing processes and assembly stresses. This paper describes the main features of fatigue analysis from ANSYS models. It shows how the subsequent fatigue analysis influences the type of FEA and the load cases modeled. The paper also discusses the choice of analysis method, the processing of fatigue loading data, and the information that can be gained from detailed analysis output.

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