Explosion Disaster Distribution Characteristics and Outlet Open-Close Effect of Turning Roadway

In this study, under the open-close conditions of a roadway outlet, ANSYS/LS-DYNA was used to build models explosions on roadways with 0° and 90° bending angles, compare analyze shock wave propagation characteristics variation laws. Combined damage degree classification overpressure human body, destructive effect zoning explosion in condition opening closing entrance studied. The results showed that as angle increased, peak attenuation waves became prominent, arrival time for same distance increased. closure outlet had waves. caused rise sharply owing reflection stacking effects near closure. far zone too fast minimal impact overpressure. addition, existence increased area severity blast body whole. With an increase angle, range decreased.