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Study on the Empirical Equations for Pressure Curve by Air Blast  

Kwon, Sangki (인하대학교 에너지자원공학과)
Publication Information
Explosives and Blasting / v.35, no.1, 2017 , pp. 1-17 More about this Journal
Abstract
The understanding of the pressure associated with air blast, which travels through air, and its effect on surface and underground structures is highly important. It is necessary to determine the pressure change with time and distance for a computer simulation of the explosion impact on a structure. From the previous studies, many empirical equations for estimating the parameters related to the pressure change. In this study, the empirical equations for predicting peak overpressure, duration of positive phase, impulse, minimum negative pressure, duration of negative pressure, arrival time, and decay constant were reviewed and analyzed. Also, the pressure changes predicted from the Kingery equation, which is the most commonly used, and from the other empirical equations were compared.
Keywords
Overpressure; Air blast; Impulse; Pressure-time curve;
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Times Cited By KSCI : 3  (Citation Analysis)
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