Numerical Simulation Study on the Blasting Effects of Charge Shape and Point of Detonation in the Free Area
Na Wang et al.
What the paper says
The utilization of high explosives in industrial applications entails significant safety and risk considerations. A clear understanding of explosive geometry and initiation conditions is essential, as these factors strongly affect the resulting blast loads. This study delves into the ramifications of diverse ignition point, encompassing center-initiation, off-center-initiation, end-initiation, and double-end-initiation, specifically evaluating their effects on both spherical and cylindrical explosive configurations. The paper meticulously examines the repercussions of incident overpressure and shock waves emanating from explosives across various orientations and scaled distances ranging from 0.4 to 9.9 m/kg1/3. The findings elucidate that, beyond scaled distances of 3.0 m/kg1/3, the impact of the cylindrical explosive’s shape on the explosion load remains below 15%, while the influence of the ignition point is limited to less than 10%. Furthermore, an introduced enhancement factor, denoted as SPF, is provided as a tool for adjusting the effects of both the explosive’s shape and ignition point. This adjustment is based on a comparative analysis with the explosion characteristics of a center-initiated spherical charge. The SPF serves as a valuable metric for refining predictions related to the shape and ignition point of explosives in the context of explosion loads.
Evidence weight
Balanced mode · F 0.40 / M 0.15 / V 0.05 / R 0.40
| F · citation impact | 0.50 × 0.4 = 0.20 |
| M · momentum | 0.50 × 0.15 = 0.07 |
| V · venue signal | 0.50 × 0.05 = 0.03 |
| R · text relevance † | 0.50 × 0.4 = 0.20 |
† Text relevance is estimated at 0.50 on the detail page — for your query’s actual relevance score, open this paper from a search result.