A History of Research and a Review of Recent Developments

12
4 lb cylinders, TNT,
3.75 lb spheres, Pentolite,
The nature of explosions
(1.7)
(1.8)
For most of these formulae p 020 ft/lb 1/3 . These different
relationships were empirical and tended to suggest an accuracy of scientific
measurement that did not exist. In fact, when the results are plotted on common
axes, they all lie within a narrow scatterband, as shown in Figure 1.3. Further
information on the behaviour of spherical charges of Pentolite is recorded in
the works of Goodman [1.14], who compiled measurements taken from
experiments over the 15 years from 1945 to 1960.
Figure 1.2 Peak overpressure v Range for various charge shapes (from Lindberg and
Firth, ref. 1.12).