Light weight replacement and the optimization design of bumper beam based on crash safety

Zhang, Jingwen; Ma, Mingtu; Fan, T. Q.; Zhao, Qingjiang; Li, Yang

doi:10.15302/j-engi-2014022

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…The windshield contributes the highest frequency (32%) of the head crash zone in vehicle-pedestrian accidents [ 7 ]. Previous studies intensively investigated the characteristics of head-windshield contacts [ 8 , 9 ], such as head form-windshield impacts tests [ 10 – 12 ], responses of windshield [ 3 , 13 , 14 ] (Alvarez and Kleiven [ 3 ] compared two kinds of windshield modelling approaches to capture the head form accelerations and windshield deformations from head impacts and found that simple plasticity models of the windshield are not sufficient to predict that a nonlocal failure model [ 15 ] was needed), head-windshield contact reconstructions, and head injury analysis using FE methods [ 9 , 16 ] (Mordaka et al [ 17 ] analyzed three cases of pedestrian head-to-windshield impact accidents and performed additional parametric studies using a detailed FE model of the head).…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation on Head and Brain Injuries Caused by Windshield Impact on Riders Using Electric Self-Balancing Scooters

Shang

Zheng

Shen

et al. 2018

Applied Bionics and Biomechanics

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To investigate head-brain injuries caused by windshield impact on riders using electric self-balancing scooters (ESS). Numerical vehicle ESS crash scenarios are constructed by combining the finite element (FE) vehicle model and multibody scooter/rider models. Impact kinematic postures of the head-windshield contact under various impact conditions are captured. Then, the processes during head-windshield contact are reconstructed using validated FE head/laminated windshield models to assess the severity of brain injury caused by the head-windshield contact. Governing factors, such as vehicle speed, ESS speed, and the initial orientation of ESS rider, have nontrivial influences over the severity of a rider's brain injuries. Results also show positive correlations between vehicle speed and head-windshield impact speeds (linear and angular). Meanwhile, the time of head-windshield contact happens earlier when the vehicle speed is faster. According to the intensive study, windshield-head contact speed (linear and angular), impact location on the windshield, and head collision area are found to be direct factors on ESS riders' brain injuries during an impact. The von Mises stress and shear stress rise when relative contact speed of head-windshield increases. Brain injury indices vary widely when the head impacting the windshield from center to the edge or impacting with different areas.

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Section: Introductionmentioning

confidence: 99%

Numerical Investigation on Head and Brain Injuries Caused by Windshield Impact on Riders Using Electric Self-Balancing Scooters

Shang

Zheng

Shen

et al. 2018

Applied Bionics and Biomechanics

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show abstract

“…These two kinds of accidents are also the top two reasons for the casualties in traffic accidents [1]. For both vehicles in a frontal crash and the striking vehicle in a rear-end crash, the vehicle frontal crashworthiness is very important.…”

Section: Introductionmentioning

confidence: 99%

Effects of a Forward Displaced Position on Driver Injury Levels in Frontal Crashes

Luo¹,

Du²,

Xu³

et al. 2015

Proceedings of the 2015 International Conference on Advanced Engineering Materials and Technology

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Abstract. To verify that a forward displaced position has effects on the driver injury levels in front-end collisions and estimate the injury levels in real accidents under this situation, a series of sled tests were conducted with dummy in different forward displaced positions. Injury response values of different body regions were calculated and used to estimate the distribution of injury levels in real accidents. The results of sled tests showed that injuries response values of the dummy driver increased obviously as its body leaned forward. And the estimated distribution of injury levels had a good similarity with statistics results. This method could also be employed to have a more comprehensive estimation of automotive active safety on occupant protection.

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An enhanced hybrid and adaptive meta-model based global optimization algorithm for engineering optimization problems

Guan

Duan

Zhao

et al. 2016

Sci. China Technol. Sci.

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Light weight replacement and the optimization design of bumper beam based on crash safety

Cited by 3 publications

References 14 publications

Numerical Investigation on Head and Brain Injuries Caused by Windshield Impact on Riders Using Electric Self-Balancing Scooters

Numerical Investigation on Head and Brain Injuries Caused by Windshield Impact on Riders Using Electric Self-Balancing Scooters

Effects of a Forward Displaced Position on Driver Injury Levels in Frontal Crashes

An enhanced hybrid and adaptive meta-model based global optimization algorithm for engineering optimization problems

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