Experimental data from The University of Newcastle's July 2014 repeatable explosive field trials

The University of Newcastle (UoN) conducted field trials in July 2014 to measure the peak incident pressure (Pi), impulse (Ii) and time of positive phase duration (td) following the detonation of different masses of the Plastic Explosive No #4 (PE4). A novel aspect of these field trials was the repeatability of tests. A variety of spherical masses of PE4 were detonated (in free air) with the following variables: Explosive mass (M) of PE4 ranged between 0.02 kg and 1.8 kg. There were fifteen different masses in total. ; There were four blasts of each similar mass; thus, 60 blasts were fired in total ; The distance (R) between each explosive's centre and any blast-gauge was constant, such that R = 0.882 m ; The variety of Mass (M) and Range (R) resulted in different Scaled Distances (Z), from 0.65 m/kg1/3 to 3.07 m/kg1/3. There were fifteen different scaled distances, for both pressure and impulse. Eight pressure gauges collected data during each blast, and at each scaled distance. Consequently, this repeatability of testing allowed the mean and variance of blast load parameters to be quantified, with a view to better characterise the variability of a blast itself, and other parameters, such as model error variability. This report describes the conduct of, and data obtained from, the University of Newcastle's July 2014 explosive field trials.