A practical and simplified human whole body FEM model was developed. During the model development, it was noticed that the simulation with the model was done within an appropriate CPU time (the practical validation cycle) and the modeling did not have the excessive biofidelity (the reduction of the model development man-hours). For simplification, bones were modeled by a hollow shell structure and muscles and ligaments were modeled by a bar/beam element.

To validate this model, frontal/lateral impact simulations were performed referring to cadaver tests which were already published. As a result, it was found that the simulation results of bone fracture and impact force agreed well with the cadaver tests. However, at the location where the soft tissue influenced the damage, a difference was found between the simulation and the cadaver test because the modeling of the soft tissue was insufficient. The author plans to improve this point it in the future.
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