Experimental investigation of dynamic properties of JOB-9003

The SHPB compression and the reversed Taylor tests were accomplished for JOB-9003 to explore its dynamic properties under impact load and to provide the experiment data for its constitutive model. The stress-strain curves of JOB-9003 obtained in the SHPB experiment were analyzed. The analysis shows that there is a good linear relationship between strain rate and stress at low and middle strain rates. The photos of the deformed JOB-9003 cylinder in the reversed Taylor test display that damage and fracture can markedly affect the mechanical properties of JOB-9003. The constitutive model deduced from the SHPB experiment was checked by the experimental results of the Taylor test. It is indicated that this constitutive model cannot be used to describe the compressive deformation of JOB-9003 at high strain rates.