Modelling the lower extremities using multi-body techniques
conference paper
In occupant crash computer programs usually two different numerical approaches are applied: multi-body techniques and finite element techniques. Multibody techniques are particularly attractive to model the human body gross motion taking into account the complex human joint behaviour. Finite element techniques allow the simulation of local structural deformations. In this paper modelling techniques for the lower extremities will be discussed. The leading question will be what kind of details and complexity are needed in lower extremity models in view of various application fields. First a review will be given of relatively simple models aimed for pedestrian protection analyses. It will be shown that these simple models are suitable to predict sufficiently accurately body accelerations, contact forces, trajectories and current injury criteria. Secondly the need for more detailed models will be addressed. The potential of these models for the analysis of injury mechanisms will be discussed. Also areas of future development will be identified.
TNO Identifier
362709
Source title
International Conference on Pelvic and Lower Extremity Injuries, 4-6 December 1995, Washington DC, USA
Collation
7 p.
Files
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