General quantification of fatigue damage with provision for microstructure: A review

Recent developments in microstructure-sensitive computational modeling and experimental verification have provided significant insight on how one can estimate fatigue damage and predict useful life. As a myriad of methods and approaches are available, it is important to understand how to properly utilize them in a unified and efficient framework for the quantification of damage in safety-critical components such as jet engine fan blades, gas turbine disks, and airframe structural connections. To this end, the microstructure-sensitive studies considering crystal plasticity are reviewed, and methods for implementing the statistical representations of material microstructure are presented. Finally, a computational crystal plasticity approach utilizing the statistical representation of parameters and a new thermodynamically based framework is suggested.

Automated summary

Recent progress in microstructure-sensitive research has led to insights on estimating fatigue damage and predicting useful life. A computational crystal plasticity approach incorporating statistical representations of material microstructure and a new thermodynamically based framework has been suggested.