Community Research and Development Information Service - CORDIS


A research programme has been carried out to enhance the understanding of fatigue and corrosion fatigue processes which occur under realistic operating conditions. In order to provide a general engineering integrity evaluation resource, a fatigue life prediction package has been developed based on mechanistic models of factors affecting the crack tip driving force. The research was divided into seven sub-projects:

- Materials property characterization;
- Modelling of ductile crack extension during fatigue;
- Modelling of environmental mechanisms using polarization studies;
- Modelling of history effect on fatigue crack initiation;
- Modelling of history effects on fatigue crack growth;
- Development of life prediction software;
- Software validation using experimental techniques.

The total fatigue life prediction methodology is based on a coupled prediction philosophy that combines the local strain approach (LSA) to predict initiation life and a cycle-by-cycle fracture mechanics approach to predict crack growth failure. The cycle-by-cycle approach adopts the DeltaK(eff) parameter through which all complicating factors are modelled. modelled.

Additional information

Authors: RUDD W, British Steel, Rotherham (GB);SHUTTER D, British Steel, Rotherham (GB)
Bibliographic Reference: EUR 13960 EN (1997) 172pp., FS, ECU 30.00
Availability: Available from the (2)
ISBN: ISBN 92-828-0739-8
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