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Volume 31 Issue 4
Aug 2017
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Chinese Journal of High Pressure Physics  > 2017  >  31(4): 364-372.
WANG Jing, REN Hui-Lan, SHEN Hai-Ting, NING Jian-Guo. Effects of Strain Rate and Porosity on the Compressive Behavior of Porous Titanium with Regular Pores[J]. Chinese Journal of High Pressure Physics, 2017, 31(4): 364-372. doi: 10.11858/gywlxb.2017.04.003
Citation: WANG Jing, REN Hui-Lan, SHEN Hai-Ting, NING Jian-Guo. Effects of Strain Rate and Porosity on the Compressive Behavior of Porous Titanium with Regular Pores[J]. Chinese Journal of High Pressure Physics, 2017, 31(4): 364-372. doi: 10.11858/gywlxb.2017.04.003
shu

Effects of Strain Rate and Porosity on the Compressive Behavior of Porous Titanium with Regular Pores

doi: 10.11858/gywlxb.2017.04.003

  • State Key Laboratory of Explosion Science and Technology，Beijing Institute of Technology，Beijing 100081, China

  • Received Date: 06 Feb 2017
  • Rev Recd Date: 13 Mar 2017
  • Publish Date: 25 Aug 2017
    Abstract
  • Using a material testing machine and the split Hopkinson pressure bar （SHPB） system，we investigated the quasi-static and dynamic compressive behaviors of porous titanium with regular pores，and studied the effects of the strain rate and porosity on the Youngs modulus，yield strength and energy absorption of the porous titanium. The experimental results show that the stress-strain curves of the porous titanium can be approximately described by a bi-liner model in a specific range，and the porosity directly affects the Youngs modulus，while the yield strength and energy absorption of the porous titanium vary with the stain rate. An empirical relation of the yield strength of the porous titanium was developed using these findings.

     

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