Presidential Young Investigator Award

该PYI奖将支持对在精加工操作过程中引入部件的近表面损伤以及将此类损伤降至最低的方法的研究。将建立脆性材料中机械应力和热应力引起的表面变形和微观断裂的分析模型，并通过实验研究进行验证。此外，还将评估微动疲劳的应力状态，以提高对这类损伤的表征。

This PYI award will support research on the near-surface damage introduced into components during finishing operations and on methods to minimize such damage. Analytical models for surface deformation and microfracturing due to mechanical and thermal stresses in brittle materials will be developed and validated by experimental studies. In addition, the stress state of fretting fatigue will be evaluated in order to improve the characterization of this type of damage.