The version currently used in LIMIT® is based on the Recommendations for Fatigue Design of Welded Joints and Components, Second Edition with updates from 2014, International Institute of Welding. The fatigue strength assessment in LIMIT® is based on SN-curves and damage calculation. Nominal and structural stress concepts are supported. The implementation can be used for welded steel and welded aluminum and offers three assessment types:
- Fatigue against CAFL (Constant Amplitude Fatigue Strength), if no cycle numbers are available
- Constant amplitude fatigue for very high cycle numbers
- Variable amplitude fatigue
Further options are available for weld and base material analysis:
- Consideration of proportional or Un-correlated loading scenarios
- Thickness correction
- Consideration of grinding and TIG-dressing
- Consideration of mean stress sensitivity and reduced residual stresses
Further Information
For detailed information please contact our LIMIT® support.
