Investigating crashworthiness of W-Beam guardrail crash barriers

IF 1.8 4区工程技术 Q3 ENGINEERING, MANUFACTURING

International Journal of Crashworthiness Pub Date : 2023-09-14 DOI:10.1080/13588265.2023.2258628

Pratik Tambe, Gaurav Tiwari, Nikhil Andraskar, Udit Jain

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Abstract

AbstractThis study presents the evaluation of safety performance of the blocked-out W-Beam guardrail crash barrier system designed as per the ‘Guidelines for traffic safety barriers’ published by Indian Road Congress (IRC:119-2015). A finite element model of the W-Beam guardrail was developed in Hyper-Mesh and the simulation of the crash analysis was performed in LS-Dyna. Results from the simulation were used to study the compliance of the barrier with the test acceptance criteria of the NCHRP 350 report for containment level TL-3 as mentioned in the IRC: 119-2015. Finite element models of 820c passenger car and 2000p pickup truck developed by NCAC were imported to the guardrail model for crash simulation according to the test designation 3-10 and 3-11. As per the acceptance criteria of the NCHRP report 350 for containment level TL-3, the obtained simulation results were examined to verify the compliance and performance of the guardrail. It was concluded that the crash barrier was compliant with test 3-10 but not with 3-11. Further, simulations for TL-1 (test 1-11) were also conducted since the barrier failed to meet the NCHRP criteria for pickup truck impacting at 100 km/h. It was found that the barrier fulfilled the criteria for pickup truck impact with 50 km/h velocity.Keywords: W-beam guardrailcrash barrierroadside safety barriernchrp 350 Disclosure statementNo potential conflict of interest was reported by the authors.

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研究w梁护栏防撞护栏的耐撞性

摘要本文根据印度道路大会(IRC:119-2015)发布的《交通安全护栏指南》，对封闭的w梁护栏防撞护栏系统的安全性能进行了评价。在Hyper-Mesh中建立了w梁式护栏的有限元模型，并在LS-Dyna中进行了碰撞仿真分析。模拟结果用于研究屏障是否符合IRC: 119-2015中提到的NCHRP 350报告中对TL-3级密封水平的测试验收标准。根据试验代号3-10和3-11，将NCAC研制的820c乘用车和2000p皮卡的有限元模型导入到护栏模型中进行碰撞仿真。根据NCHRP报告350对安全壳级别TL-3的验收标准，对得到的模拟结果进行了检查，以验证护栏的合规性和性能。结果表明，碰撞屏障符合试验3-10，但不符合试验3-11。此外，还进行了TL-1(测试1-11)的模拟，因为该屏障未能满足皮卡以100公里/小时撞击的NCHRP标准。结果表明，该屏障符合皮卡车50km /h碰撞标准。关键词:w梁护栏碰撞护栏路边安全护栏披露声明作者未报告潜在利益冲突。

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来源期刊

International Journal of Crashworthiness 工程技术-工程：机械

CiteScore

3.70

自引率

10.50%

发文量

审稿时长

2.3 months

期刊介绍： International Journal of Crashworthiness is the only journal covering all matters relating to the crashworthiness of road vehicles (including cars, trucks, buses and motorcycles), rail vehicles, air and spacecraft, ships and submarines, and on- and off-shore installations. The Journal provides a unique forum for the publication of original research and applied studies relevant to an audience of academics, designers and practicing engineers. International Journal of Crashworthiness publishes both original research papers (full papers and short communications) and state-of-the-art reviews. International Journal of Crashworthiness welcomes papers that address the quality of response of materials, body structures and energy-absorbing systems that are subjected to sudden dynamic loading, papers focused on new crashworthy structures, new concepts in restraint systems and realistic accident reconstruction.