Journal
ANNALS OF BIOMEDICAL ENGINEERING
Volume 47, Issue 2, Pages 464-474Publisher
SPRINGER
DOI: 10.1007/s10439-018-02155-3
Keywords
Hybrid-III; Anthropomorphic test device; Helmet impact testing; Computational model; Material properties
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Funding
- Football Research, Inc. (FRI)
- Biomechanics Consulting and Research, LLC (Biocore)
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The objective of this study was to develop and validate a set of Hybrid-III head and neck (HIII-HN) and impactor models that can be used to assess American football design modifications with established dummy-based injury metrics. The model was validated in two bare-head impact test configurations used by the National Football League and research groups to rank and assess helmet performance. The first configuration was a rigid pendulum impact to three locations on the HIII head (front, rear, side) at 3m/s. The second configuration was a set of eight 5.5m/s impacts to the HIII head at different locations using a linear impactor with a compliant end cap. The ISO/TS 18571 objective rating metric was used to quantify the correlation between the experimental and model head kinematics (linear and rotational velocity and acceleration) and neck kinetics (neck force and moment). The HIII-HN model demonstrated good correlation with overall mean ISO scores of 0.69-0.78 in the pendulum impacts and 0.65-0.81 in the linear impacts. These publically available models will serve as an in silico design platform that will be useful for investigating novel football helmet designs and studying human head impact biomechanics, in general.
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