The influence of position of the post or its absence on the performance of the cable barrier system

Abstract

Road safety barriers are used to increase safety in potentially dangerous places on the roads. They are designed and installed on the roads to prevent any vehicle from getting outside the travelled way or from entering the opposite lane of the road. Barriers, which are used on European roads, have to undergo full scale crash tests according to the EN 1317 standards. Nowadays as a supplement to real crash tests, numerical simulations are commonly used. The work concerns the influence of position of the post or its absence on the crashworthiness of the cable barrier based on numerical study results.

Numerical Simulation of Vehicle–Lighting Pole Crash Tests: Parametric Study of Factors Influencing Predicted Occupant Safety Levels

“…The pole was discretized using fully integrated Lagrangian Belytschko-Tsay (BT) shell elements. For the vehicle, the widely used and deeply validated Suzuki Geo Metro FE model was adopted [ 20 , 25 , 26 , 27 ] as modified by the Department of Mechanics of Materials and Structure, Gdańsk University of Technology, Poland [ 26 ]. The model consists of 14,709 shell elements and 820 solids.…”

“…The status of numerical modeling is somewhat different for guardrails [ 13 , 18 , 19 , 20 ]. Utilization of numerical modeling of guardrail impact began in the 1980s with the development of computer programs such as GUARD and NARD [ 21 ].…”