High-power laser shock-induced dynamic fracture of aluminum and microscopic observation of samples

@inproceedings{Fan2015HighpowerLS,
  title={High-power laser shock-induced dynamic fracture of aluminum and microscopic observation of samples},
  author={Zhang Fan and Huang Xiuguang and Shu Hua and Xiao Dawu and He Lifeng and Xie Zhiyong and Ye Junjian and Dong Jiaqin and Jia Guo and Fang Zhiheng and Zhou Huazhen},
  year={2015}
}
High-power laser induced shocks generated by “ShenGuang II” laser facility has been used to study spall fracture of polycrystalline aluminum at strain rates more than 106/s. The free surface velocity histories of shock-loaded samples, 150 μm thick and with initial temperature from 293 K to 873 K, have been recorded using velocity interferometer system for any reflector (VISAR). From the free surface velocity profile, spall strength and yield stress are calculated, it demonstrates that spall… CONTINUE READING