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8331120 
Journal Article 
Quasi-static gas pressure generated by explosive charge blasting in a spherical explosion containment vessel 
Liu, W; Zhang, D; Zhong, F; Cheng, S; Zhang, Q 
2018 
38 
5 
1045-1050 
Chinese 
Quasi-static pressure is important for the design of explosion containment vessels. Experiments of the spherical vessel under blast loading, in which the quasi-static pressure was measured by the pressure sensors of two different installations, i.e. flush installation and guide-hole installation, were carried out. The data obtained by the pressure sensors are consistent with each other. Based on the formula form derived theoretically, the empirical formula was obtained by fitting the data. The main results are as follows: (1) the pressure in the vessel goes into quasi-static state after the blast wave reflects back and forth three times in the vessel; (2) the quasi-static pressure in the spherical vessel is proportional to the explosion equivalent-to-vessel volume ratio, and the empirical coefficient is 1.10 MPa•m3/ kg TNT. © 2018, Editorial Staff of EXPLOSION AND SHOCK WAVES. All right reserved. 
Explosion equivalent-to-vessel volume ratio; Pressure sensor; Quasi-static pressure; Spherical explosion containment vessel