Shelat, Chintan<sup>1</sup>; Ghosh, Pronoy<sup>1</sup>; Chitteti, Ravikiran<sup>1</sup>; Mayer, Christian<sup>2</sup>

Affiliations

¹Human Body Modeling at Mercedes Benz Research & Development India, Plot No. 9&10,Whitefield Palms, EPIP Zone Phase – II, Bangalore, Karnataka, India – 560066

²Program Coordinator with Daimler AG, Germany

Abstract and keywords

This research addresses relaxation of existing human body finite element (FE) model, i.e. classical THUMS‐D in LS_DYNA. The methodology discussed identifies proposed corridors for relaxation; modifications carried out to model pertaining to relaxation and verify the simulations based on 1 g frontal braking pulse. “Relaxed” THUMS‐D delivers fairly good response in terms of head excursions. This model is able to deliver a response within the defined corridors after inclusion of Active Muscles. The modifications carried out to the model comprised of elastic moduli, connection in head‐neck complex and connections between spine and skin. “Relaxed” THUMS‐D model in totality delivered more head excursions compared to the defined corridors without any muscle activity.

Keywords: Relaxation, active HBM, muscle, viscoelastic, frontal braking

Links

URL: http://www.ircobi.org/wordpress/downloads/irc16/pdf-files/34.pdf

Cited Works (7)

Year	Entry
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1999	Kumaresan S, Yoganandan N, Pintar FA. Finite element analysis of the cervical spine: a material property sensitivity study. Clin Biomech (Bristol, Avon). January 1999;12(1):41-53.
2013	Zhang N, Zhao J. Study of compression-related lumbar spine fracture criteria using a full body FE human model. In: Proceedings of the 23rd International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 27-30, 2013; Seoul, South Korea.
2013	Ólafsdóttir JM, Östh JKH, Davidsson J, Brolin KB. Passenger kinematics and muscle responses in autonomous braking events with standard and reversible pre‐tensioned restraints. In: Proceedings of the 2013 International IRCOBI Conference on the Biomechanics of Injury. September 11-13, 2013; Gothenburg, Sweden.602-617.
2011	Gupta AK, Sharma G, Shah P, Ageorges C, Mayer C. Development of an anatomically‐correct finite element model of the human shoulder. In: Proceedings of the 2011 International IRCOBI Conference on the Biomechanics of Injury. September 14-16, 2011; Krakow, Poland.228-231.
2015	Huber P, Kirschbichler S, Prüggler A, Steidl T. Passenger kinematics in braking, lane change and oblique driving maneuvers. In: Proceedings of the 2015 International IRCOBI Conference on the Biomechanics of Injury. September 9-11, 2015; Lyon, France.783-802.

Cited By (8)

Year	Entry
2019	Martynenko OV, Neininger FT, Schmitt S. Development of a hybrid muscle controller for an active finite element human body model in LS-DYNA capable of occupant kinematics prediction in frontal and lateral maneuvers. In: Proceedings of the 26th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 10-13, 2019; Eindhoven, Netherlands.
2019	Öztürk A, Mayer C, Kumar G H, Ghosh P, Mishra A, Chitteti RK, Fressmann D. A step towards integrated safety simulation through pre-crash to in-crash data transfer. In: Proceedings of the 26th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 10-13, 2019; Eindhoven, Netherlands.
2020	Martynenko OV, Nölle LV, Schmitt S. Integration of the open-source extended Hill-type muscle material into THUMSv5. In: Proceedings of the 2020 International IRCOBI Conference on the Biomechanics of Injury. 2020; Munich, Germany.205-206.
2020	Lerge P, Schmitt S, Martynenko OV. Simulation of pedestrian kinematics before impact with a vehicle using an active pedestrian human body model. In: Proceedings of the 2020 International IRCOBI Conference on the Biomechanics of Injury. 2020; Munich, Germany.210-212.
2021	Martynenko OV, Wochner I, Nölle LV, Alfaro EH, Schmitt S, Mayer C, Mishra A, Ghosh P, Chitteti RK, Weber J, González-García M, Beaugonin M, Vlachoutsis S. Comparison of the head-neck kinematics of different active human body models with experimental data. In: Proceedings of the 2021 International IRCOBI Conference on the Biomechanics of Injury. September 8-10, 2021; Online.105-121.
2020	Mishra A, Ghosh P, Chitteti R, Mayer C. Development of a Chinese 5^th percentile female active human body model. In: Proceedings of the 2020 International IRCOBI Asia Conference on the Biomechanics of Injury. 2020; Beijing, China.44-47.
2023	Larsson E. Passenger Kinematics in Evasive Maneuvers: Advancing Active Human Body Modeling and Understanding Variability in Passenger Kinematics During Evasive Maneuvers [PhD thesis]. Götenburg, Sweden: Chalmers University of Technology; 2023.
2022	Mühlbauer JA. Entwicklung regionaler Validierungsexperimente mit Freiwilligen für aktive Finite-Elemente Menschmodelle [PhD thesis]. Ludwig Maximilian University of Munich; 2022.