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

Baranowski, Paweł; Damaziak, Krzysztof

doi:10.3390/ma14112822

Cited by 15 publications

(9 citation statements)

References 43 publications

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“…Therefore, FE analyses have become an important tool to analyze roadside barriers with cost-effective solutions (Atahan and Cansiz 2005;Atahan 2006Atahan , 2010Atahan et al 2014). In this regard, LS-DYNA finite element simulation software that is used primarily in dynamic crashworthiness analysis was effectively applied in many studies (Wright and Ray 1996;Eskandarian et al 1997;Ray 1997;Plaxico et al 1998;Uddin and Hackett 1999;Atahan 2002Atahan , 2006Tiso et al 2002;Kirkpatrick et al 2003;Bligh et al 2004;Reid 2004;Whitworth et al 2004;Wu and Thomson 2004;Griškevičius et al 2007;Vesenjak et al 2007;Tabacu and Pandrea 2008;Štych 2010;Ferdous et al 2011;Amato et al 2013;Borovinšek et al 2013;Neuenhaus et al 2013;Mirdamadi 2014;Mojdeh 2015;Teng et al 2016;Yin et al 2016;Soltani et al 2017;Wu 2000, 2020;Baranowski and Damaziak 2021;Apak et al 2022) and also will be applied in this study. Pendulum crash tests have also been conducted widely in the literature to verify and validate the virtual simulation tests (Gatchell and Michie 1974;Bank and Gentry 2001;Frp et al 2001;Atahan et al 2002;Mitchell et al 2006;…”

Section: Virtual Testsmentioning

confidence: 99%

Renewable hybrid roadside barrier: Optimization of timber thickness

Yorur

Özcanan

Yumrutas

et al. 2022

BioRes

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Researchers have recently focused on new and original roadside barriers that prioritize aesthetic, and environmental concerns by employing natural materials. In this study, the safety performance (Acceleration Severity Index (ASI), Theorical Head Impact Velocity (THIV)), structural performance (Working Width (W), Exit Angle (α)), and failure analysis (visual deformation) of a newly developed Renewable Hybrid Barrier (RHB) system at different timber thicknesses were tried to be determined by pendulum crash test and Finite Element (FE) models. The FE models were calibrated and validated based on pendulum crash test results, and then the most suitable timber thickness in terms of safety and structural performance was determined via FE analyses. The results revealed that as the timber thickness decreased, the safety parameters, such as ASI and THIV, decreased, thus the barrier safety increased. However, it was observed that the deflection and deformations in the barrier increased as the timber thickness decreased. In this sense, the safest and the most structurally durable barrier was determined through conducting virtual optimization tests. Studies on diversification of the usage areas of natural/renewable materials should be increased in the future.

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Section: Virtual Testsmentioning

confidence: 99%

Renewable hybrid roadside barrier: Optimization of timber thickness

Yorur

Özcanan

Yumrutas

et al. 2022

BioRes

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“…This model is commonly used in modelling problems related to crash tests or the effects of explosive charges. This model is commonly used in modelling issues related to crash tests or blast loading [25][26][27]. The mathematical formula which describes this model is as follows [28,29]:…”

Section: Numerical Studymentioning

confidence: 99%

Research of Vibrations of an Armoured Personnel Carrier Hull with FE Implementation

et al. 2021

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Modern wheeled armoured vehicles can perform a variety of tasks, making the development of weapon systems that can be safely and effectively integrated with the vehicle structure an area of interest. Due to the cost of implementing new models, it is more economical to test potential configurations using numerical methods, such as the finite element method. The numerical model has been validated to confirm the reliability of the obtained results. Modal tests were also performed using four configurations to identify the frequency and mode shape of natural vibrations occurring within the support structure. In an experimental setting, hull vibrations were forced using the modal hammer testing method. The modal assurance criterion (MAC) and the authors’ procedure were used to confirm the experimental and numerical test results. Additional testing in the form of impact loads was carried out for turret-containing structures. Structural strain at indicated points and forces transmitted by brackets to the bottom of the hull were compared.

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“…One of them may be the local constraints associated with the topology of the surrounding terrain and/or existing road infrastructure. Despite there being many studies on vehicular impacts into RSBs [ 25 , 26 , 27 ] or impacts into supporting structures [ 28 , 29 , 30 ], there are almost no studies investigating the influence of the installation of supporting structure in the barrier’s working width on the crash outcome. One of a few studies on that subject was performed by La Torre et al [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of a Lighting Column in the Working Width of a W-Beam Barrier on TB51 Crash Test

et al. 2022

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Road equipment, such as, e.g., road safety barriers and lighting columns, are subject to certification according to the EN1317 standard to be allowed for use on European roads. In engineering practice, due to the terrain conditions, there are cases where other road equipment is installed within the working width of road safety barriers. Such situations are not considered during the certification process. Hence, the aim of this study is to analyze the effect of a lighting column installed within the working width of the barrier on the results of the TB51 crash test. The full-scale crash test and numerical simulation of this event were conducted. In the full-scale crash test, as well as in the simulation, the lighting column prevented the barrier’s post from properly disconnecting from the guardrail, which resulted in the barrier failing to restrain and redirect the 13-t bus. The simulation was quantitatively compared to the experiment, where the correlation coefficient of ASI curves equaled 84%. The THIV curves differed significantly between the experiment and the simulation, which is explained within the paper. Next, simulations with and without the lighting column were compared. The ASI and THIV in the simulation without the column were 0.33 and 16.1 km/h, respectively. In the simulation with the column, the ASI and THIV were 0.44 and 17.7 km/h, respectively. The maximum roll angle of the vehicle in the simulation without the column was 2.01° and with the column was 5.96°. The main difference, however, was that the system without the lighting column within the working width of the barrier was capable of properly restraining and redirecting the vehicle. The specific mechanics underlying this behavior are described within the paper.

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

Cited by 15 publications

References 43 publications

Renewable hybrid roadside barrier: Optimization of timber thickness

Renewable hybrid roadside barrier: Optimization of timber thickness

Research of Vibrations of an Armoured Personnel Carrier Hull with FE Implementation

Influence of a Lighting Column in the Working Width of a W-Beam Barrier on TB51 Crash Test

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