Mechanical testing by uniaxial compressive test of DPX-6

DPX-6 is a press-filled PBX containing HMX and Aluminium powder as the main components. The content of HMX is 50 wt% while the content of aluminium is 45.9 wt%. The last 4.1 wt% is the binder (Hytemp/DOA) of which 73 wt% is the plasticizer DOA. We have in this report pressed pellets at room temperature to an average density of 2.038 g/cm3 or 97% of TMD. These pellets have been used to characterize the mechanical properties at – 50, 20, 40 and 60o C by uniaxial compression test. The obtained max stress properties go from 35 MPa at -50o C to 12.8 MPa at 60o C, while the corresponding strain at max stress goes from 6.0 % to 4.78 %.