Prediction of Fatigue Crack Growth Rates in Ti-6Al-4V Alloy
Crack initiation under thermo-mechanical fatigue is analyzed with consideration given to oxidation and creep strain accumulation. Transitions and interactions between different mechanisms, crack initiation and crack propagation rates display significant scaling and size effects. The objective of this work is to present experimental data for crack initiation and propagation in aerospace alloys, and to offer some means of describing these data so as to develop improved capabilities for life prediction in aerospace materials and assemblies.
KeywordsFatigue Crack Stress Intensity Factor Fatigue Crack Growth Fatigue Crack Growth Rate Compact Tension
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