Scale Model Tests of Multiple Barriers against Aircraft Impact: Part 2. Simulation Analyses of Scale Model Impact Tests

摘要

The objectives of this study were (1) to analytically investigate the effectiveness of multiple reinforced concrete barriers against aircraft impact through simulation analyses of the 1/7.5 scale aircraft model impact tests presented in Part 1, using a discrete element method (DEM), and (2) to examine the applicability and validity of DEM. The analytical results accurately reproduced the fracture processes of the aircraft and the RC panel, velocity changes after impact, and the impact load on the second panel. The residual velocities of the aircraft and the impact loads on the second panels obtained in the analysis decreased markedly with increase in first panel thickness.