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|Title: ||Dynamic verification of a multi-body computational model of human head and neck for frontal, lateral, and rear impacts|
|Authors: ||van Lopik, D.W.|
|Keywords: ||Cervical spine|
Head and neck
Multi-body computational model
|Issue Date: ||2007|
|Publisher: ||© Professional Engineering Publishing|
|Citation: ||VAN LOPIK, D.W. and ACAR, M., 2007. Dynamic verification of a multi-body computational model of human head and neck for frontal, lateral, and rear impacts. Proceedings of the IMechE, Part K: Journal of Multi-body Dynamics, 221 (2), pp. 199-217|
|Abstract: ||A multi-body computational model of the human head and neck was previously shown
to be in good agreement with experimental findings from actual human cervical spine specimens.
The model segments were tested in three directions of loading showing main and coupled
motions to be accurate and realistic.
The model’s ability to predict the dynamic response of the head and neck, when subjected to
acceleration pulses representing frontal, lateral, and rear-end impacts, is verified using experimental
data derived from sled acceleration tests with human volunteers for 15 g frontal and 7 g
lateral impacts and from isolated cervical spine specimen tests for rear-end impacts. Response
corridors based on sled acceleration tests with human volunteers for frontal and lateral impacts
are used to evaluate the model and investigate the effect of muscle activation on the head–
neck motion. Firstly, the impacts are simulated with both passive and active muscle behaviour.
Secondly, the local loads in the soft-tissue elements during the frontal impact are analysed. For
rear-end impact simulation experiments using ligamentous isolated cervical spine specimens are
used to evaluate the model performance before investigating the effects of muscle tensioning.
Good agreement with human volunteer response corridors resulting from frontal and lateral
impacts, and isolated cervical spine specimen sled test rear-end impact experiments is
demonstrated for the model, highlighting the important role the muscles of the neck play in
the head–neck response to acceleration impacts. The model is shown to be able to predict the
loads and deformations of the cervical spine components making it suitable for injury analysis.|
|Description: ||This is an article from the journal, Proceedings of the IMechE, Part K: Journal of Multi-body Dynamics [© Professional Engineering Publishing ]. It is also available at: http://journals.pepublishing.com/content/119776/?p=266fefa3f73a46f381f6a697583ca356&pi=0|
|Appears in Collections:||Published Articles (Mechanical, Electrical and Manufacturing Engineering)|
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