科研之友
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摘要
The physical meaning of ductile spall fracture corresponding to the typical properties in free surface velocity curve has been discussed. A correlation between the macroscopic responses and the evolution of mic-damage is established; the pullback signal the found to correspond to the condition for nucleation of voids, and the rate at which the velocity rises to the first peak beyond the minima corresponds to the rate of damage evolution, and by using the velocity period after the the pullback signal we can distinguish the state of damage.
- 出版日期2015-2-5
- 单位中国工程物理研究院; 北京理工大学; 中国工程物理研究院流体物理研究所
