Dynamic Void Growth in a Two-Phase Material under Uniaxial Tension

  • M. Taya
  • I. W. Hall
  • H. S. Yoon
Part of the International Union of Theoretical and Applied Mechanics book series (IUTAM)


An investigation is made of the void growth in a two-phase material subjected to high strain-rate deformation which is obtained by Split Hopkinson bar apparatus under uniaxial tension mode.The target two-phase material is polycrystalline Al-Si alloy.The stress-strain curves of Al-Si at various strain rate \(\mathop \varepsilon \limits^{\cdot}=500 \sim 1500/{\rm{sec}}\) indicate that this two-phase material exhibits high strain-rate sensitivity. It was found by SEM study that void density f increases with \(\mathop \varepsilon \limits^{\cdot}\). Then, the void growth model of Taya et al. is used to predict the void density fat the fracture surface and in the parallel region, resulting in a reasonably good agreement with the experimental results.


Uniaxial Tension Secondary Particle Void Growth Void Nucleation Parallel Region 
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Copyright information

© Springer-Verlag, Berlin, Heidelberg 1987

Authors and Affiliations

  • M. Taya
    • 1
  • I. W. Hall
    • 1
  • H. S. Yoon
    • 1
  1. 1.Department of Mechanical and Aerospace EngineeringUniversity of DelawareNewarkUSA

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