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Journal of mechanical science and technology v.25 no.1, 2011년, pp.143 - 148   SCIE 피인용횟수: 3
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High-temperature dynamic deformation of aluminum alloys using SHPB

Lee, Ouk-Sub    (School of Mechanical Engineering, Inha University   ); Choi, Hye-Bin    (Department of Mechanical Engineering, Inha University   ); Kim, Hong-Min    (Department of Mechanical Engineering, Inha University  );
  • 초록

    This paper investigates the dynamic deformation behavior of two aluminum alloys, 2024-T4 and 6061-T6, using a modified split Hopkinson pressure bar (SHPB) with a pulse shaper technique at both elevated and room temperatures. An experimental strategy is proposed, and the dynamic deformation behaviors of two alloys are evaluated with the modified high-temperature SHPB apparatus. The experiments were carried out under varying strain rates and temperatures. The reflected waves modulated by the pulse shaper, the flow stress-strain relationships, the strain rates, the front- and back-ends stresses during the dynamic deformation period were measured at varying high temperatures. Experimentally obtained data were used to evaluate the parameters in the material constitutive equation, such as the Johnson-Cook (JC) constitutive model.


  • 주제어

    m-SHPB (modified split Hopkinson pressure bar) .   Dynamic deformation behavior .   Johnson-cook constitutive model .   Flow stress .   High strain rate .   High temperature .   Pulse shaper .   Aluminum alloys.  

  • 참고문헌 (11)

    1. H. Kolsky, Stress Wave in Solids, Dover Publications, Inc, New York, USA (1963). 
    2. O. S. Lee, G. H. Kim, M. S. Kim and S. W. Hwang, Dynamic deformation behavior of aluminum alloys under high strain rate compressive/tensile loading, Proc. of the KSME 2000 Fall Annual Meeting (2000) 268-273. 
    3. D. Gerlich, and E. S. Fisher, The high temperature elastic moduli of aluminum, J. Phys.Chem.Solid, 30 (1969)1197-1205. 
    4. Y. Y. Cho and H. S. Kim, State dependence of activation energies for high temperature creep of Al7075 alloy, KSME journal, 17 (1993)131-140. 
    5. O. S. Lee, S. W. Hwang, H. B. Choi, D. H. Kim and H. M. Kim, Dynamic deformation of aluminum alloys ay high temperature by using SHPB techniques, Proc. of 9th International Conference on the Mechanical Physical Behavior of Materials under Dynamic Loading (2009) 443-448. 
    6. S. W. Seo, O. K. Min and, H. M. Yang, Constitutive equation for Ti-6Al-4V at high temperatures measured using the SHPB technique, International Journal of Impact Engineering, 31 (2005) 735-754. 
    7. G. T. Gray, ASM Handbook Vol. 8 Mechanical Testing and Evaluation, ASM International Material Park, USA (2000). 
    8. Y. Li, Y. Guo, H. Hu and Q. Wei, A critical assessment of high temperature dynamic mechanical testing of metals, International Journal of Impact Engineering, 36 (2009) 177-184. 
    9. D. Samantaray, S. Mandal and A. Bhaduri, A comparative study of Johnson-Cook, modified Zerilli-Armstrong and Arrehenius type constitutive models to predict evaluate temperature flow behavior in modified 9Cr-1Mo steel, Computational Materials Science, Available online 25, October (2009). 
    10. A. S. Khan and R. Liang, Behavior of three BCC metal over a wide range of strain rates and temperatures: experiments and modeling, International Journal of Plasticity, 15 (1999) 1089-1109. 
    11. I. K. Lee, H. M. Yang and O. K. Min, The True Stress-Strain Relation of Aluminum Alloys in the SHPB Tension Test, KSME A, (2000) 7917-1922. 
  • 이 논문을 인용한 문헌 (3)

    1. 2011. "" Journal of mechanical science and technology, 25(9): 2211~2215     
    2. Kim, Jong-Tak ; Woo, Sung-Choong ; Kim, Jin-Young ; Kim, Tae-Won 2012. "Compressive Deformation Behaviors of Aluminum Alloy in a SHPB Test" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A, 36(6): 617~622     
    3. Kim, Jong-Tak ; Woo, Sung-Choong ; Sakong, Jae ; Kim, Jin-Young ; Kim, Tae-Won 2013. "Analysis of Compressive Deformation Behaviors of Aluminum Alloy Using a Split Hopkinson Pressure Bar Test with an Acoustic Emission Technique" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A, 37(7): 891~897     

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