RT Journal T1 Numerical Simulation and Experiment of the Damage Process of Heterogeneous Rock Under Ultrasonic Vibration A1 Yin Songyu, Zhao Dajun, Zhou Yu, Zhao Bo PB Journal of Jilin University(Earth Science Edition) FD 2017-03-26 YR 2017 JF Journal of Jilin University(Earth Science Edition) JO Journal of Jilin University(Earth Science Edition) VO 47 IS 2 SP 526 DO 10.13278/j.cnki.jjuese.201702201 K1 heterogeneity;crack extension;damage factor;numerical simulation;ultrasonic vibration LK {http://xuebao.jlu.edu.cn/dxb/EN/article/article_10635.shtml}