|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Failure, and a Career That is Anything But: An LMD Symposium Honoring J. Wayne Jones
||Reducing Uncertainty: Reflections on Establishing Life Limits
||James M. Larsen, Sushant K. Jha, Reji John, Andrew H. Rosenberger, Dennis J. Buchanan, John J. Porter, III, Adam L. Pilchak, Patrick J. Golden
|On-Site Speaker (Planned)
||James M. Larsen
Uncertainty in fatigue life prediction is among the most limiting structural design factors for fracture-critical metallic components in advanced aerospace systems. This presentation will highlight sources of variability and uncertainty in fatigue, and will offer insights into factors that control the lower-bound fatigue life limit. Anchored in the principles of damage tolerance, a perspective will be outlined for modeling fatigue life limits and for deconstructing the sources of variability in fatigue response. The approach seeks to optimize safety, reliability, and affordability, while utilizing the alloy’s full inherent performance capability. Efforts to validate such probabilistic models vs. field experience are finding new opportunities through emerging tools for microstructural characterization, health awareness, and Integrated Computational Materials Science.