激光-PDC钻头联合破岩机理及特性研究

黄志强,梁耀文,陈科,翟预立,雷雨薇

Research on the mechanism and characteristic of joint rock-breaking of laser-PDC drill bit

Zhiqiang HUANG,Yaowen LIANG,Ke CHEN,Yuli ZHAI,Yuwei LEI

表2 花岗岩HJC本构模型参数

Table 2 Parameters of HJC intrinsic model of granite

参数 量值 fc 124.53 MPa T 12 MPa A 0.15 B 2.5 N 0.79 C 0.001 86 Smax 5.4 D1 0.045 D2 1 Ef min 0.015