Hongbiao Zheng

Effect of Prefabricated Borehole Diameter on the Nonlinear Mechanical Response of Coal–Rock Composite Specimens Under Dynamic Loading

To investigate the effect of prefabricated borehole diameter on the dynamic response of coal–rock composite specimens, split Hopkinson pressure bar (SHPB) tests were conducted on specimens without a borehole and with borehole diameters of 4, 6, and 8 mm. Twelve specimens were tes...