The mechanical properties of (Cu_0.47Zr_0.45Al_0.08)₉₈Dy₂ bulk metallic glass (BMG) were characterized under various strain rates by quasi-static and dynamic compressive tests. In the quasi-static compressive tests, the yield stress of (Cu_0.47Zr_0.45Al_0.08)₉₈Dy₂ BMG increased from 1234 MPa to 1844 MPa when the strain rate was increased from 0.001 s⁻¹ to 0.01 s⁻¹, and the yield stress decreased to 1430 MPa at the strain rate of 0.1 s⁻¹. In the dynamic compressive tests, when the strain rate increased from 1550 s⁻¹ to 2990 s⁻¹, the yield stress of (Cu_0.47Zr_0.45Al_0.08)₉₈Dy₂ BMG first decreased from 1508 MPa to 1404 MPa, and then increased to 1593 MPa. The fracture behaviors of (Cu_0.47Zr_0.45Al_0.08)₉₈Dy₂ BMG were studied by using scanning electron microscopy to examine the fracture surface. Fracture occurred in the pure shear mode with strain rates below 2100 s⁻¹, whereas shear fracture and normal fracture occurred simultaneously under strain rates of 2650 s⁻¹ and 2990 s⁻¹.

The characteristics of detonation wave propagation in the PTFE is analyzed by explosive theory, this paper has simulated the process of detonation wave's propagation in PTFE by dynamics program, the detonation wave's attenuation law in PTFE was obtained. In order to verify the rationality of the theoretical analysis and numerical simulation results, the detonation wave pressures were measured by the technique of manganin piezoresistance in different thicknesses of PTFE. It can be seen from the research contents that the calculation results are in good agreement with the test results, which shows the scientificalness and reliability of the simulation model and calculation method. The research contents provide the necessary technical support for the metrological study of detonation pressure test.

The thermal damage process of the energetic material sample D-RDX was simulated by the thermal accelerated aging test, and the physical and explosive properties of the thermally damaged D-RDX energetic material were measured. The results showed that the physical properties of D-RDX did not change significantly under the test conditions, but the impact safety was significantly different, and the safety of the thermally damaged D-RDX sample showed greater dispersion.

A testing system was established to measure at 71°C the expansion pressure of a thermoplastic explosive with different charge quantities and of thermoplastic explosives with the same charge quantity but different formulations. It is indicated that the growth of expansion pressure of the thermoplastic explosive is non-linear with the increase rate of the charge quantity. And the expansion pressure has the possibility of decreasing when the charge quantity reaches a certain value. The expansion pressure will vary remarkably with the selection of polymer materials with differed dynamic mechanical properties as additives.