Equivalent overpressure time-histories are given by (8) such that the
peak overpressure ([P.sub.o]) is equal to the recorded
peak overpressure, and equivalent positive phase duration [t.sub.eq] is given by the following equation:
VCEs are very dangerous because they tend to have a high
peak overpressure for a relatively long duration and hence a very high impulse.
The
peak overpressures recorded by those pressure transducers [24] and the numerical results obtained from the present work were summarized in Figure 3.
Beyer [39] visualized the path of the incident wave diffracting over the blast wall as shown in Figure 9 and reported attenuated positive
peak overpressure behind the wall.
Multiple studies have confirmed that microcontusion and microhemorrhaging of the BBB occurs with a lower threshold of 200 kPa
peak overpressure in direct cranial and lateral blast exposure models [49, 69].
Peak Overpressure. The results for the
peak overpressure were obtained by using LabView program.
where [P.sub.i,max] is the
peak overpressure of the incident shock front; pt is the rate of pressure increase.
Caption: FIGURE 5: The surface unit
peak overpressure values in the reticulated shell structure.
Normalized
peak overpressure ratio could be correlated with inlet diffusion area ratio (AR); this correlation is illustrated in the figure shown on this page.
Samples were exposed to an average of 18.37 psi (127 kPa)
peak overpressure, which corresponds to mild severity injury in preclinical rodent models [14, 15].