On analysis of double-impact test of 1500-kg vehicle into w-beam guardrail system

Archives of civil engineering

article

Krzysztof Wilde¹  Dawid Bruski¹  Stanisław Burzyński¹  Jacek Chróścielewski¹  Łukasz Pachocki¹  Wojciech Witkowski¹ 

[1] Gdańsk University of Technology, Faculty of Civil and Environmental Engineering

关键词: crash test;    TB32;    w-beam guardrail;    numerical simulations;    double-impact;    crashworthiness;   

DOI  :  10.24425/ace.2021.137157

学科分类：建筑学

来源: Polska Akademia Nauk * Instytut Podstawowych Problemow Techniki / Polish Academy of Sciences, Institute of Fundamental Technological Research

【 摘 要 】

Every day on roads many scenarios of accidents may occur. One of the measures to minimize their consequences is road safety barriers. Finite Element analyses are being increasingly used to support the physical testing of these devices. The paper addresses the issue of a secondary impact into the previously damaged w-beam guardrail system. This situation belongs to one of the most dangerous which can happen on roads and may cause serious hazards, especially if the vehicle goes through the barrier. To evaluate the crashworthiness of the road barrier, the computational model of the crash test was developed and validated against the full-scale crash test. Then two simulations of TB32 crash tests were conducted on both damaged and undamaged road barriers to assess the influence of damage on the effectiveness of the safety system during vehicular impact. The study has revealed that the partially damaged system preserved some of its original functionality.

【 授权许可】

Unknown