自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 10    No. 4    December 2003

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Shock wave compression behavior of aluminum foam
CHENG He-fa(程和法)1, 2, HUANG Xiao-mei (黄笑梅)1,
XUE Guo-xian(薛国宪)2,HAN Fu-sheng(韩福生)2

1.School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China;
2.Laboratory of Internal Friction and Defects in Solids, Institute of Solid State Physics,
Chinese Academy of Science, Hefei 230031, China

Abstract:The shock wave compression behavior of the open cell aluminum foam with relative density of 0.396 was studied through planar impact experiments. Using polyvinylidene fluoride(PVDF) piezoelectric gauge technique, the stress histories and propagation velocities of shock wave in the aluminum foam were measured and analyzed. The results show that the amplitude of shock wave attenuates rapidly with increasing the propagation distance in the aluminum foam, and an exponential equation of the normalized peak stress vs propagation distance of shock wave is established, the attenuation factor in the equation is 0.286. Furthermore, the Hugoniot relation,vs=516.85+1.27vp, for the aluminum foam is determined by empirical fit to the experimental Hugoniot data.

 

Key words: aluminum foam; shock wave; attenuation; Hugoniot

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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