Application of a new hill-type bar muscle model: finite element modeling of the muscle effect on the head-neck kinematics in a frontal impact at 15g: preliminary results

摘要

Understanding the muscle effect on the head-neck complex biomechanical responses in a car collision requires data on forces generated by muscles during such collision. In the current study, muscle forces were calculated using Hill-type barmaterial model previously implemented in the PAM-SAFE(tm) finite element code. Long neck muscles were modeled by means of strings of series-connected bars to represent their curving around the cervical vertebrae. The neck model with muscle bars wasapplied to study the muscle effect on the head-neck kinematics in a frontal impact at acceleration of 15 g for various values of a muscle reflex time. For the reflex time of 50 ms, the current model responses were inside the corridors from experimentsusing volunteers. For the reflex time of 100 ms, our results were inside the envelopes from tests conducted on cadavers.