| Abstract [eng] |
The main purpose of this master work is to investigate the wood—steel road barriers and to compare the results with the results of metal barriers. Completed analysis shows that the number of deaths in Lithuania’s vehicle accidents in 2014 was equal to 91 pers./1 million population, which is almost 4 times more than in Malta, which of all EU countries in the same year was died at least people — 26 pers./1 million pop. Analytical tests which were carried out, shows that the highest ASI and THIV values are respectively equal to 1,38 and 41,3 km/h, when 900 kg vehicle crashes 40° angle and 100 km/h speed, but the biggest PHD factor — 23,5 g when vehicle of the same weight crashes at 30 ° angle 100 km/h speed. There was modelled wood—steel restraint barrier and TB11 test was tested with LS-DYNA program. ASI, THIV and PHD values, which are available during work, shows that the modeled wood—steel restraint barrier very precisely calculate the impact criterias. It is most likely to suffer serious injury for person in vehicle accident. There was modeled TB42 test, when truck crashes at wood—steel restraint barrier, which does not support a vehicle impact forces. |
