A biomechanical modelling study of pedestrian skull and brain injury risk in vehicle collisions affected by head rotational speed

• Autorzy: Yi Xiangxian , Luo Yangkun , Zhou Wu , Nie Jin

Identyfikatory

DOI

10.37190/ABB-02523-2024-02

• Języki publikacji: EN

Abstrakty

EN

The purpose of the current study is to investigate the influence of head rotational speed on pedestrian skull and brain injury risk while considering the variation of head linear impact speed and contact location. Methods: Pedestrian head-to-vehicle collision simulations are defined by the distributions of pedestrian head–vehicle impact boundary conditions extracted from reconstructions of real-world accidents, where finite element (FE) models of a human body head and vehicle front-end are applied. Results: In general, a higher rotational speed at the instant of contacting with vehicle structures leads to a higher skull and brain injury risk: an increase of 30 rad/s in head rotational speed increases the skull fracture risk on average by 2.1–2.6 times and the AIS2+ (Abbreviated Injury Scale) brain injury risk by 1.7–2.7 times in head-hood impacts; for the contacts on the windscreen, the AIS2+ brain injury risk is below 15%, the effect of head rotational speed could be ignored, though an increase of 30 rad/s in head rotational speed leads to 1.6–2.9 times increase in AIS2+ brain injury risk. Conclusions: Head rotational speed has significant influences on both skull and brain injury risk. The effect of head rotational speed is always adverse for the risk of brain injuries and hood contact induced skull fractures. However, head rotational speed has no apparent effect on the skull injury risk for head-vehicle contacts at the windscreen.

Słowa kluczowe

EN

biomechanical modelling; vehicle collision; pedestrian skull and brain injury; head rotational speed

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2024
• Tom: Vol. 26, no. 4
• Strony: 163--173
• Opis fizyczny: Bibliogr. 37 poz., rys., tab., wykr.

Twórcy

autor

Yi Xiangxian

• Loudi Vocational and Technical College, Loudi, China.

autor

Luo Yangkun

• Hunan Automotive Engineering Vocational College, Zhuzhou, China.

autor

Zhou Wu

• Loudi Vocational and Technical College, Loudi, China.

autor

Nie Jin

• Loudi Vocational and Technical College, Loudi, China.
• State Key Laboratory of Advanced Design and Manufacturing Technology for Vehicle, Hunan University, Changsha, China.

Bibliografia

• [1] ALVAREZ V., KLEIVEN S., Importance of windscreen modelling approach for head injury prediction, Proceedings of the International Research Council on Biomechanics of Injury (IRCOBI) Conference, 2016.
• [2] ATSUMI N., NAKAHIRA Y., TANAKA E., IWAMOTO M., Human brain modelling with its anatomical structure and realistic material properties for brain injury prediction, Ann. Biomed. Eng., 2018, 46, 736–748.
• [3] C-NCAP, C-NCAP Management Regulation (2024 Version). China New Car Assessment Programme. China Automotive Technology and Research Canter, 2024.
• [4] Euro-NCAP, Vulnerable Road User Testing Protocol, Version 9.1. European New Car Assessment Programme, 2023.
• [5] FAHLSTEDT M., HALLDIN P., KLEIVEN S., Comparison of multibody and finite element human body models in pedestrian accidents with the focus on head kinematics, Traffic Inj. Prev., 2016, 17 (3), 320–327.
• [6] GENNARELLI T.A., OMMAYA A.K., THIBAULT L.E., Comparison of translational and rotational head motions in experimental cerebral concussion, SAE Technical Paper, 710882, 1971.
• [7] HERTZ E., A note on the head injury criterion (HIC) as a predictor of the risk of skull fracture, Proceedings of the 37th Annals of Advances in Automotive Medicine (AAAM), 1993.
• [8] HOU W., SHEN Y., JIANG K., WANG C., Study on mechanical properties of carbon fiber honeycomb curved sandwich structure and its application in engine hood, Compos. Struct., 2022, 286, 115302.
• [9] HUANG J., PENG Y., YANG J., OTTE D., WANG B., A study on correlation of pedestrian head injuries with physical parameters using in-depth traffic accident data and mathematical models, Accid. Anal. Prev., 2018, 119, 91–103.
• [10] KERRIGAN J., CRANDALL J., A comparative analysis of the pedestrian injury risk predicted by mechanical impactors and post mortem human surrogates, Stapp. Car Crash J., 2008, 52, 08S–018.
• [11] LI G., LIU J., LI K., ZHAO H., SHI L., ZHANG S., NIE J., Realistic reference for evaluation of vehicle safety focusing on pedestrian head protection observed from kinematic reconstruction of real-world collisions, Front. Bioeng. Biotech., 2021, 9, 768994.
• [12] LI G., TAN Z., LV X., REN L., Numerical reconstruction of injuries in a real world minivan-to-pedestrian collision, Acta Bioeng. Biomech., 2019, 21 (2), 21–30.
• [13] LI G., WANG F., OTTE D., SIMMS C., Characteristics of pedestrian head injuries observed from real world collision data, Accid. Anal. Prev., 2019, 129, 362–366.
• [14] LI G., WANG F., OTTE D., CAI Z., SIMMS C., Have pedestrian subsystem tests improved passenger car front shape, Accid. Anal. Prev., 2018, 115, 143–150.
• [15] LI G., XU S., XIONG T., LI K., QIU J., Characteristics of head frequency response in blunt impacts: A biomechanical modeling study, Front. Bioeng. Biotech., 2024, 12, 1364741.
• [16] LI G., YANG J., SIMMS C., Safer passenger car front shapes for pedestrians: a computational approach to reduce overall pedestrian injury risk in realistic impact scenarios, Accid. Anal. Prev., 2017, 100, 97–110.
• [17] MARGULIES S., THIBAULT L., GENNARELLI T., Physical model simulations of brain injury in the primate, J. Biomech., 1990, 23 (8), 823–836.
• [18] MIZUNO K., KAJZER J., Head injuries in vehicle-pedestrian impact, SAE Technical Paper, 2000-01-0157, 2000.
• [19] MIZUNO K., YONEZAWA H., KAJZER J., Pedestrian head form impact tests for various vehicle locations, Proceedings of the 17th International Technical Conference on the Enhanced Safety of Vehicles (ESV), Amsterdam, the Netherlands, ESV Paper No. 278, 2001.
• [20] NIE J., LI G., YANG J., A study of fatality risk and head dynamic response of cyclist and pedestrian based on passenger car accident data analysis and simulations, Traffic Inj. Prev., 2014, 16 (1), 76–83.
• [21] OTTE D., JÄNSCH M., HAASPER C., Injury protection and accident causation parameters for vulnerable road users based on German In-Depth Accident Study GIDAS, Accid. Anal. Prev., 2012, 44 (1), 149–153.
• [22] OTTE D., Severity and mechanism of head impacts in car-topedestrian accidents, Proceedings of the International Research Council on Biomechanics of Injury (IRCOBI) Conference, 1999.
• [23] PENG Y., CHEN Y., YANG J., OTTE D., WILLINGER R., A study of pedestrian and bicyclist exposure to head injury in passenger car collisions based on accident data and simulations, Safe Sci., 2012, 50 (9), 1949–1959.
• [24] PENG Y., YANG J., DECK C., WILLINGER R., Finite element modelling of crash test behavior for windshield laminated glass, Int. J. Impact. Eng., 2013, 57 (7), 27–35.
• [25] ROWSON S., DUMA S., BECKWITH J., CHU J., GREENWALD R., CRISCO J., BROLINSON P., DUHAIME A-C., MCALISTER T., MAERLENDER A., Rotational head kinematics in football impacts: an injury risk function for concussion, Ann. Biomed. Eng., 2011, 40 (1), 1–13.
• [26] SCHMITT K.U., NIEDERER P.F., MUSER M.H., WALZ F., Trauma biomechanics, Third edition, Springer, 2010.
• [27] SIMMS C., WOOD D., Pedestrian and Cyclist Impact, Springer, 2009.
• [28] TAKHOUNTS E., CRAIG J., MOORHOUSE K., MCFADDEN J., HASIJA V., Development of brain injury criteria (BrIC), Stapp. Car Crash J., 2013, 57, 243–266.
• [29] Toyota Motor Corporation, Documentation: Total Human Model for Safety (THUMS), AM50 pedestrian/occupant model advanced version 4.0 20111003, 2011.
• [30] WANG F., PENG K., ZOU T., LI Q., LI F., WANG X., WANG J., ZHOU Z., Numerical reconstruction of cyclist impact accidents: Can helmets protect the head-neck of cyclists, Biomimetics, 2023, 8, 456.
• [31] WANG J., WANG R., GAO W., CHEN S., WANG C., Numerical investigation of impact injury of a human head during contact interaction with a windshield glazing considering mechanical failure, Int. J. Impact Eng., 2020, 141, 103577.
• [32] WHO. Global status report on road safety 2023. World Health Organization, Geneva, Switzerland, 2023.
• [33] YANG J., Review of injury biomechanics in car-pedestrian collisions, Int. J. Veh. Saf., 2005, 1 (1–3), 100–117.
• [34] YANG Z., DENG T., ZHAN Z., Design and analysis of vehicle active hood for pedestrian protection, SAE Technical Paper, 2021-01-7019, 2021.
• [35] ZHAN Z., LV F., RAN X., ZHOU G., ZHAO S., HE X., WANG J., LI J., Automotive hood design based on machine learning and structural design optimization, SAE Technical Paper, 2023-01-0744, 2023.
• [36] ZHOU Z., LI X., KLEIVEN S., Biomechanics of acute subdural hematoma in the elderly: A fluid-structure interaction study, J. Neurotraum., 2019, 36 (13), 2099–2108.
• [37] ZOU T., CHEN D., LI Q., WANG G., GU C., A novel straw structure sandwich hood with regular deformation diffusion mode, Compos. Struct., 2024, 337, 118077.