Modelling High cycle fatigue for an embedded reinforcement using normal strain Morrow criteria in Abaqus”FE-safe”

Description

This aim of this model is to calculate the the failure cycle for a reinforced beam.

Results from Abaqus ‘ODB’ is imported into Fe-safe. The stress tensor is then multiplied by the time history of applied loading to produce time history for each tensor. A multi axial fatigue model is use to convert elastic stress-strain history into plastic stress strain history. Individual life cycles are counted using a rain-flow cycle logarithm and total damage is summed. The element with the shortest life define the start of crack initiation.