Abstract
This paper discuss the influence of selected factors on the performance of a concrete road barrier H2/W5/B. Modelling techniques of a concrete road safety system were briefly discussed. Comparison to the full scale crash test results has been shown. The concrete road safety barrier has been investigated for evaluation of the overall damage after collision under various initial conditions. The failure assessment criterion has been proposed and it was derived from a qualitative comparison of the numerical results with the full scale crash test data. Impact severity indexes have been calculated and discussed.
Highlights
Each type of a road-safety barrier has to be subjected to the full scale crash test in order to assess the appropriate level of containment and correct values of impact severity indexes [1]
Numerical simulations may be a powerful tool as a source of supplementary data for full scale crash tests
Results of the numerical simulations allow the engineers to estimate the impact of accident on the participants and on the damage done to road restrained systems
Summary
Each type of a road-safety barrier has to be subjected to the full scale crash test in order to assess the appropriate level of containment and correct values of impact severity indexes [1]. It is widely used tool for crash tests simulations for various types of road restraining systems [5,6,7,8,9,10,11,12] or other special events [13,14,15,16]. According to European Standards [1] in some cases numerical simulations can be used for barrier certification This is possible only if the numerical model was subjected to the validation process [2] and the change in the system is classified as moderate [1].
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