Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2003.10a
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- Pages.191-194
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- 2003
Quasi-Static and Dynamic Loading Responses of Ti-6Al-4V Titanium Alloy: Experiments and Constitutive Modeling
- Suh, Yeong-Sung (Department of Mechanical Engineering, Hannam University) ;
- Akhtar S. Khan (Department of Mechanical Engineering, University of Maryland)
- Published : 2003.10.01
Abstract
The results from a systematic study of the response of a Ti-6Al-4V alloy under quasi-static and dynamic loading at different strain rates and temperatures are presented. It has been shown that the work-hardening rate decreased as the strain rate and the strain increased. The correlations and predictions using modified KHL (Khan-Huang-Liang) viscoplastic constitutive model are compared with those from JC (Johnson-Cook) model and experimental observations. Overall, KHL model correlations and predictions compared much more favorably than the corresponding JC model predictions and correlations.
Keywords
- Constitutive Behavior;
- Elastic-Viscoplastic Material;
- Finite Dynamic Strain;
- Ti-6Al-4V Titanium Alloy;
- Split Hopkinson Bar;
- Thermal Softening;
- High Strain-Rate Response