Parametrically upscaled model-based predictive platform for fatigue with location-specific microstructural linkages (opens in new tab)

Fatigue in metallic materials is a cost-intensive engineering challenge due to unpredictable occurrences when undergoing cyclic loading. Particularly vulnerable is dwell fatigue, where the hold time significantly reduces life. The unpredictability is attributed to microstructure-dependent crack nucleation (a significant portion of life) in polycrystalline microstructures with evolving mechanisms. In titanium alloys like Ti-6Al-4V, microstructural heterogeneity, including micro-textured region...