Analysis of car’s frontal collision against pole

Ispas, Nicolae; Năstăsoiu, Mircea

doi:10.1088/1757-899x/252/1/012012

Cited by 6 publications

(3 citation statements)

References 0 publications

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“…The obtained results show that the Kelvin model is suitable for modelling a car crash into a pillar. Similar studies were described in another article (Ispas and Nastasoiu, 2017). The authors reported that for high speeds the car body penetration is large and the engine and gear box were moving towards the safety cage, which poses a serious threat to the safety of vehicle users.…”

Section: Introductionsupporting

confidence: 68%

Identification of the parameters of a vehicle crashing into a round pillar

Kostek¹,

Aleksandrowicz²

2020

Journal of Theoretical and Applied Mechanics

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This article presents a study on reconstruction of a crash of a passenger car-Opel Mokka, into a pillar. Computer simulations were performed with software V-SIM4, both for default data and data identified from the crash test. The crash test was performed by AUTOBILD and DEKRA. The frontal collision with a pillar is not a standard crash test recommended by the Directives of CommunautéÉconomique Européenne (CEE), even though this type of collision poses a serious threat to the safety of vehicle users. The threat comes from the large penetration of the vehicle body through the pillar. These accidents are difficult to reconstruct with the programs applied by expert witnesses, because they require a lot of experience and changes in many parameters. Identification of these parameters is critical in this case. Values of the parameters were identified from recorded images. The obtained results of simulation show strong sensitivity of the accident course to the position of the force application point, which acts between the pillar and the vehicle. Also, the key factors are: contact parameters, identification of the initial conditions, sensitivity of the course of the accident to the adopted values of the parameters, and knowledge of the limitations of any software. Many expert witnesses do not even realise that their results of simulations, based on default values, are faulty. The process of obtaining an agreement between the simulation and experimental results is a time-consuming iteration process. This process is described in this article, which is address to expert witnesses and researchers; moreover, a direction for development of software was suggested.

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Section: Introductionsupporting

confidence: 68%

Identification of the parameters of a vehicle crashing into a round pillar

Kostek¹,

Aleksandrowicz²

2020

Journal of Theoretical and Applied Mechanics

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“…It is also among the crashes that contribute significantly to dweller fatalities and serious harms [69]. Front pole test is common in conventional vehicles, see previous tests in [69,70]. Unfortunately, neither NCAPs nor IIHS executes front pole test in EVs.…”

Section: Recent Research On Crashworthiness Of Evsmentioning

confidence: 99%

Lessons from the Electric Vehicle Crashworthiness Leading to Battery Fire

Chombo

Laoonual

2021

Energies

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Electric vehicles (EVs) are currently emerging as alternative vehicles due to their high energy efficiency and low emissions during driving. However, regarding the raising concern, the safety of EVs can further be improved before they completely replace conventional vehicles. This paper focuses on reviewing the safety requirements of EVs, especially those powered by Li-ion battery, based on the mechanical abuse tests from the international standards, national standards, regulations and other laboratories standards, and safety of occupants from the regulations and safety programs. Moreover, the publicly reported real-world fire incidents of EVs based on road crashes were collected and reviewed. The objective is to highlight the gap and challenges arose between the current safety requirements and real-world fire incidents of EVs and provide the way for assisting the future research in the area of EV safety, particularly light duty passenger vehicle. The serious challenges observed include high impact speed, multi-crashes per incident, multiple barriers of different types involved in the accident, and post-crash safety (serious injury and demise) of occupants and rescue teams. While addressing these challenges, this review will aid researchers and manufacturers working in batteries, EVs, and fire safety engineering to narrow the gap and enhance the safety of future EVs in areas of battery materials, fire extinguishing, and vehicle’s body structure.

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“…It is important to emphasize that roadside trees also remain a very serious road safety issue [14]. The safety of drivers and passengers involved in these types of accidents usually depends on the speed of the collision, the configuration, the dimensions of the stationary object, i.e., a pole or a tree, and, of course, on the safety of the vehicle structure; therefore, it is essential to assess the dangers of these objects and the possible consequences for the driver and passenger [15].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Energy Equivalent Speed of Car Damage Using a Finite Element Model

Droździel,

Pasaulis,

Pečeliūnas

et al. 2024

Vehicles

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To determine the speed of a vehicle in a collision with body deformation, the kinetic energy input of the vehicle to cause body damage must be estimated. This paper analyzes the methods for estimating the energy equivalent of vehicle damage. A finite element model of a Toyota Yaris developed by the National Crash Analysis Center (NCAC) for use in the LS DYNA R.11.0.0 software environment is used for the simulation. The simulations include tests of the vehicle hitting a non-deformable wall, an object simulating a pole or a tree. The residual deformations obtained are used to determine the energy equivalent speed (EES) values using the “Crash 3—EBS Calculation 12.0” software and a visual comparison with the EES catalog database, where the EES parameter value is recalculated to take into account the difference in the mass of the vehicles.

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Analysis of car’s frontal collision against pole

Cited by 6 publications

References 0 publications

Identification of the parameters of a vehicle crashing into a round pillar

Identification of the parameters of a vehicle crashing into a round pillar

Lessons from the Electric Vehicle Crashworthiness Leading to Battery Fire

Evaluation of the Energy Equivalent Speed of Car Damage Using a Finite Element Model

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