The article presents a mobile anti-vehicle barrier created from a high-performance fibre-reinforced concrete, which resembles a historical design of the Czech Hedgehog barrier. The performance of this design when subjected to a moderate velocity vehicle impact was evaluated. A preliminary crash test provided basic data to perform an optimisation of the design using numerical simulations conducted in LS-DYNA. Several key observations were made regarding the crucial role of the barrier-surface interactions and overall barrier behaviour. Based on the simulations, improved geometry of the barrier was proposed and subjected to more full-scale crash tests with various barrier placements. The improved barrier design was able to stop an ordinary road vehicle weighing 1300 kg moving with a velocity of 48 km/h while retaining beneficial characteristics, most importantly low weight.

本文介绍了一种由高性能纤维增强混凝土制成的可移动的反车辆屏障，该屏障类似于捷克刺猬屏障的历史设计。评估了该设计在中等速度车辆撞击下的性能。初步的碰撞测试提供了基本数据，可以使用LS-DYNA中进行的数值模拟对设计进行优化。关于屏障-表面相互作用和整体屏障行为的关键作用，有几个关键的观察。基于仿真，提出了改进的障碍物几何形状，并在各种障碍物放置下进行了更全面的碰撞测试。改进的屏障设计能够使重量为1300 kg的普通道路车辆以48 km / h的速度行驶，同时保持良好的性能，