爆炸容器内准静态气压实验研究

准静气压是爆炸容器安全设计和失效分析的主要参数，由于爆炸过程的复杂性，国内外对爆后准静态气压研究得较少。为了研究爆炸容器内准静态气压的规律，设计了内径195 mm，最大装药密度即装药量与体积比为8.87 kg/m3的可重复使用爆炸容器。通过实验获得了爆炸准静气压载荷随时间变化规律，存在一个气压快速上升—指数下降—回升—准静气压，获得了准静气压和装药量与体积比的拟合关系。

Experiment Investigation on Quasi-static Pressure in Explosion Containment Vessels

Because of explosion complexities, the investigation on quasi static pressure after explosion was very scarce. But it was the foundation for safety assessment and failure analysis of explosive containment vessels (ECV). For studying quasi static pressure in ECV, a reusable ECV of 195 mm in inside diameter and 8.87 kg/m3 in the largest charge density ratio (Q/V) was designed. The static pressure time varying law and the fitting equation bwtween quasi static pressure and charge density ratio were obtained experimentally. The results show that there exists a quick increasing—exponential decreasing—re rising—quasi static process.