Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2005.10a
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- Pages.136-138
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- 2005
Mechanical Behavior of Nanocrystalline Aluminum (II) : Modeling
나노결정 알루미늄의 기계적 거동 (II) : 모델링
- Khan Akhtar S. (Department of Mechanical Engineering, University of Maryland, Baltimore County) ;
- Suh Yeong Sung
- ;
- 서영성 (한남대학교 기계공학과)
- Published : 2005.10.01
Abstract
The responses of nanocrystalline aluminum powder of different grain sizes, was modeled Using, Khan, Huang, and Liang (KHL) viscoplastic model including hi-linear Hall-Petch type, based on experimental measurements. Correlation of strain-rate-dependent stress responses for different grain sizes were in good agreement with the experimental results.
Keywords
- Nanocrystalline Aluminum;
- Dynamic Viscoplastic Response;
- Split-Hopkinson Bar;
- Constitutive Modeling;
- Modified Hall-Petch Relation