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Proceedings 2018, 2(6), 269;

A Novel Instrumented Human Head Surrogate for the Impact Evaluation of Helmets

Department of Industrial Engineering, University of Padova, Via Venezia 1, 35131 Padova, Italy
SportsTech Research Centre, Mid Sweden University, Akademigatan 1, 83125 Ӧstersund, Sweden
Presented at the 12th Conference of the International Sports Engineering Association, Brisbane, Queensland, Australia, 26–29 March 2018.
Author to whom correspondence should be addressed.
Published: 13 February 2018
Download PDF [967 KB, uploaded 23 March 2018]


A novel Human Head Surrogate was obtained from available MRI scans of a 50th percentile male human head. Addictive manufacturing was used to produce the skull, the brain and the skin. All original MRI geometries were partially smoothed and adjusted to provide the best biofidelity compatible with printing and molding technology. The skull was 3D-printed in ABS and ten pressure sensors were placed into it. The brain surrogate was cast from silicon rubber in the 3D-printed plastic molds. Nine tri-axial accelerometers (placed at the tops of the lobes, at the sides of the lobes, in the cerebellum and in the center of mass) and a three-axis gyroscope (at the center of mass) were inserted into the silicon brain during casting. The cranium, after assembly with brain, was filled with silicon oil mimicking the cerebral fluid. Silicon rubber was cast in additional 3D-printed molds to form the skin surrounding the cranium. The skull base was adapted to be compatible with the Hybrid-III neck and allow the exit of brain sensors cabling. Preliminary experiments were carried out proving the functionality of the surrogate. Results showed how multiple accelerometers and pressure sensors allowed a better comprehension of the head complex motion during impacts.
Keywords: human head; surrogate; additive manufacturing; accelerometers; impact tests human head; surrogate; additive manufacturing; accelerometers; impact tests
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Petrone, N.; Carraro, G.; Castello, S.D.; Broggio, L.; Koptyug, A.; Bäckström, M. A Novel Instrumented Human Head Surrogate for the Impact Evaluation of Helmets. Proceedings 2018, 2, 269.

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