INARA provides an analytical crack propagation model for a broad range of applications (e.g. damage tolerant design or predictive maintenance of railway axles).
INARA was developed
- to predict fatigue crack growth in railway axles
- that are originating from a semi-elliptical crack
- on the basis of fracture mechanics concepts in Mode I loading conditions
- to predict the growth of fatigue cracks under loads which are defined by the user and which may be imported from other sources, e.g.
- 2D stress distribution in a railway axle cross section, predicted with FEM software packages
- to predict the growth of fatigue cracks under influence of residual stresses
- that can be defined axisymmetrically
- to predict the growth of fatigue cracks on basis of the MCL-short crack model
- on basis of experimentally determined fatigue crack growth parameters
- by considering load sequence effects (optionally) and
- by considering short crack growth behaviour
- to predict numbers of cycles for reaching a predefined critical crack length