Journal
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
Volume 44, Issue 8, Pages 1973-1999Publisher
WILEY
DOI: 10.1111/ffe.13515
Keywords
additive manufacturing; aerospace structures; crystal plasticity; fatigue and fracture; finite element; microstructure; statistical modeling
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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.
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.
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