A generic positioning tool for human body FE models

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Desai, Changadevkumar¹; Sharma, Girish¹; Shah, Parthiv¹; Ageorges, hristophe¹; Mayer, Christian²; Fressmann, Dirk³

A generic positioning tool for human body FE models

Proceedings of the 2012 International IRCOBI Conference on the Biomechanics of Injury

Affiliations

¹Mercedes‐Benz R & D India, India

²Daimler AG, Germany

³DYNAmore GmbH, Germany
Abstract and keywords

Human body finite element (FE) models are used in pedestrian protection and occupant safety simulations. These human models are normally only available in standard occupant and pedestrian postures. These postures may not be adequate for all crash scenarios, and this limits the usability of human body models FE in the future. Due to detailed modeling of skin, flesh and ligaments in the human FE model, the positioning technique of human body is entirely different and much more complex than that of dummy models and current methods do not offer easy and quick positioning of human models. This paper focuses on the development of a general‐purpose positioning tool as well as the use of kinesiology to achieve anatomically correct postures of the human model. The positioning requires a mesh smoothing step which is realized using a local dual kriging approach. Scientific knowledge of joint kinematics is essential to achieve anatomically correct postures which are obtained from kinesiology. The findings of kinesiology are incorporated into the positioning tool to reduce the user dependency in achieving anatomically correct postures. The tool facilitates the generation of anatomically correct postures quickly. This paper describes the positioning method in more detail and gives some practical examples of posture change.

Keywords: human body FE model, joint kinematics, kinesiology, kriging, positioning tool
Links

URL: http://www.ircobi.org/downloads/irc12/pdf_files/69.pdf

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Year	Entry
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.
2015	Ghosh P, Andersson M, Vazquez MM, Svensson M, Mayer C, Wismans J. A proposal for integrating pre‐crash vehicle dynamics into occupant injury protection evaluation of small electric vehicles. In: Proceedings of the 2015 International IRCOBI Conference on the Biomechanics of Injury. September 9-11, 2015; Lyon, France.767-782.
2021	Klein C, González-García M, Weber J, Bosma F, Lancashire R, Breitfuss D, Kirschbichler S, Leitgeb W. A method for reproducible landmark-based positioning of multibody and finite element human models. In: Proceedings of the 2021 International IRCOBI Conference on the Biomechanics of Injury. September 8-10, 2021; Online.477-489.
2021	Costa C, Caffrey JM, von Kleeck BW III, Weaver AA, Hallman JJ, Akima S, Hsu F-C, Gayzik FS. Effect of postural adjustment methods on mesh quality and simulation time of human body models. In: Proceedings of the 2021 International IRCOBI Conference on the Biomechanics of Injury. September 8-10, 2021; Online.490-510.
2016	Boakye‐Yiadom S, Barker J, Cronin D. Pre‐position effect on the response and failure of a C4‐C5 segment FE model. In: Proceedings of the 2016 International IRCOBI Asia Conference on the Biomechanics of Injury. May 16-18, 2016; Seoul, South Korea.35-36.
2016	Yang J, Mayer C, Pal S, Ghosh P, Brueckner B, Zhang J. Analysing differences of dynamic responses and injury risks of 5th percentile female occupants during frontal impact using FE‐human body models representing eastern (Chinese) and western (US/EU) human body dimensions. In: Proceedings of the 2016 International IRCOBI Asia Conference on the Biomechanics of Injury. May 16-18, 2016; Seoul, South Korea.69-71.