Simulation study on cavity growth in ductile metal materials under dynamic loading

  title={Simulation study on cavity growth in ductile metal materials under dynamic loading},
  author={Aiguo Xu and Guangcai Zhang and Yangjun Ying and Xijun Yu},
  journal={Frontiers of Physics},
Cavity growth in ductile metal materials under dynamic loading is investigated via the material point method. Two typical cavity effects in the region subjected to rarefaction wave are identified: (i) part of material particles flow away from the cavity in comparison to the initial loading velocity, (ii) local regions show weaker negative or even positive pressures. Neighboring cavities interact via coalescence of isobaric contours. The growth of cavity under tension shows staged behaviors… 
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