Tips and Tricks for Understanding Vibration Fatigue in nCode DesignLife

When a resonance is activated, dynamic analysis is required to produce the fluctuating stresses needed for fatigue analysis. In the case of harmonic or random excitations, fatigue analysis can be performed in the frequency domain, which (in this case) will be both faster and more accurate compared to the equivalent time domain fatigue analysis.

This 30-minute webinar will review the steps involved in performing basic uniaxial, high cycle, vibration fatigue analysis. The presenter will discuss how vibration fatigue can be adopted for low cycle fatigue or the analysis of welds and composites; as well as tips for using advanced features in nCode DesignLife to better model the physics and get more realistic predictions.

This webinar will concentrate on:

  • Introduction to Vibration fatigue – example of a simple case
  • Use of multiple correlated inputs
  • How to better model physics for more realistic predictions
  • Account for temperature effects on the damage
  • Damage models for low cycle fatigue, welds, and composites
  • Increasing the resolution of an FRF in order to better define the resonances (and anti-resonances)

Originally presented on December 11, 2018




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