The impact of forming processes on road barrier strength

Dziewulski, Paweł; Stanisławek, Sebastian

doi:10.1063/1.5092006

Cited by 3 publications

(4 citation statements)

References 11 publications

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“…The second model represents the KTC 015 barrier and a 12.5 ton bus. The numerical model description is presented in [26].…”

Section: Numerical Modelmentioning

confidence: 99%

“…Validation of the numerical model, in which a bus impacts a KTC 015 side barrier according to TB51 requirements, is presented in [26].…”

Section: Validationmentioning

confidence: 99%

“…17 and was in contact with it for a length of 35.81 m. The tested barrier achieved a positive result according to the TB51 collision test. Information on normalization procedure for W N and D N and the results of the TB51 test are reported in[26].…”

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confidence: 99%

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Deterioration of Road Barrier Protection Ability Due to Variable Road Friction

Stanisławek¹,

Dziewulski²,

Kêdzierski³

2019

Int. j. simul. model.

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The paper presents an analysis of road barrier performance due to variable friction between tires and the ground under different weather conditions. Analyses are based on the TB42 and TB51 test, wherein a vehicle impacts a KTC 033 and KTC 015 steel barrier. A full-scale experiment using a Renault Midlum truck and a SETRA S215L bus was conducted according to the EN 1317 regulation in order to validate a numerical model. A series of numerical tests were conducted in order to investigate the influence of the friction coefficient (µ wr = 0-1.1) on the normative test results. We proved that in TB 42 test on a very slippery road, the working width W N is equal to 1.6 m, while for a test conducted in good weather conditions (i.e. a dry and clean road) it is only 0.9 m. Thus, it can be stated that the EN 1317 norm may not provide sufficient information about road barrier safety. The behaviour of a barrier cannot be easily anticipated during impact in poor weather conditions, when surface-wheel contact is insufficient.

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“…The second model represents the KTC 015 barrier and a 12.5 ton bus. The numerical model description is presented in [26].…”

Section: Numerical Modelmentioning

confidence: 99%

“…Validation of the numerical model, in which a bus impacts a KTC 015 side barrier according to TB51 requirements, is presented in [26].…”

Section: Validationmentioning

confidence: 99%

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Deterioration of Road Barrier Protection Ability Due to Variable Road Friction

Stanisławek¹,

Dziewulski²,

Kêdzierski³

2019

Int. j. simul. model.

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“…And more, the finite element method for road safety guardrail, W-beam guardrail, crash test adopting the European standard EN 1317 supports to comply as alternative option of test standard proposed by the AASHT, Teng et al [5]. Paweł and Sebastian [6] used FEA code on LS-DYNA for simulating the road guardrail subjected to a bus crash to investigate the effective material modeling of the guardrail. They have considered three zones guardrail model, their material properties characterized by different constants to comply with the real one, and their results shows a close match to the experimental ones.…”

Section: Introductionmentioning

confidence: 99%

W-beam guardrail crash analysis and evaluation using finite element method

Lerabo,

Habte

2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Guardrails are highly recommended to be erected in the median and side corner of a highway road to secure vehicle accidentally loss it track, supports the safety of the vehicle driver and passenger from catastrophic accidents. The design and constructions of different guardrails are done confirming standard to retain their performance that related to energy absorption capacity. Besides, damaged guardrails that compromise their performance are seen in highways due to poor maintenance or repair. This study was conducted to investigate the structural integrity of W-beam guardrail damage. An impact test which leads to non-linear material deformation behavior was simulated using commercially available software, ABAQUS. The geometrical models of the guardrail were modeled adopting AASHTO standard, and a representative Jeep truck used to impact the guardrail at 90o with 42.26km/hr speed. The non-conforming W-beam guardrail was modeled considering a loss connection of supporting leg with the W-beam. Results of the study showed that the structural integrity of the damaged guardrail is affected as the internal and plastic energy was decreased from the W-beam guardrail without damage. More, the damaged W-beam was displaced more, by 14.15%, to the restricted area as compared to the W-beam guardrail without damage.

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Crash energy absorption aspects of reinforced concrete barriers with natural rubber sheet

Aung¹,

Jarasjarungkiat²

2021

The 7th International Conference on Engineering, Applied Sciences and Technology: (Iceast2021)

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The impact of forming processes on road barrier strength

Cited by 3 publications

References 11 publications

Deterioration of Road Barrier Protection Ability Due to Variable Road Friction

Deterioration of Road Barrier Protection Ability Due to Variable Road Friction

W-beam guardrail crash analysis and evaluation using finite element method

Crash energy absorption aspects of reinforced concrete barriers with natural rubber sheet

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