Fatigue Analysis using Finite Element (FEA) Results

Learn how to perform CAE-based fatigue analysis

Course overview - 3 days

Learn how to use nCode DesignLife software to perform fatigue analysis using stresses from computer aided engineering (CAE) tools. Class time includes both lecture on fatigue life prediction techniques and hands-on sessions where you get to put concepts into action with DesignLife software. An emphasis is placed on hands-on comparisons of different analysis techniques so you’ll learn best engineering practices while gaining software proficiency.

Learning objectives

  • Import geometry and stresses into DesignLife from finite element (FE) software like ANSYS, Abaqus, Nastran, LS-Dyna, PTC Creo, and Altair OptiStruct
  • Define fatigue loading, from simple cycles to measured loading histories to vibration profiles
  • Assign material fatigue properties
  • Assess fatigue life with methods like stress-life (SN) and strain-life (EN) in both time and frequency domains
  • Generate virtual stress and strain histories
  • Apply stress superposition and multiple FE load cases
  • Explore stress combination methods and plasticity corrections
  • Identify and interpret fatigue hotspots 
  • Create reusable fatigue analysis templates 

Who should attend

The course is aimed at engineers who need to predict fatigue life from FE-derived stresses. It is assumed that attendees are familiar with FE modeling practices and general structural analysis concepts. No prior knowledge of nCode software is required. This course will briefly cover fatigue theory, but it will focus on using these concepts in software. Attendees looking to learn more about the background of fatigue theory are encouraged to attend our course called Practical Fatigue Theory.