In the present study, a previously developed finite-element model of the neck was modified by adding the Hill-type muscle elements. The modified model was utilized to investigate the muscle effects on the kinematic responses of the head-neck complex in a frontal impact at a speed of around 60 km/h. The behavior of this model was consistent with the literature data describing kinematic responses of volunteers and cadavers subjeted to such an impact. The present results suggest the following: 1) It is likely that, when the neck muscles are activated at around 25 ms - 30 ms after the start of the impact acceleration, they can significantly reduce the peak values of the head-gravity center displacements and angular acceleration in a high-speed frontal impact. 2) When the activation of neck muscles starts at around 100 ms or later, their effects can be disregarded.
Finite element modeling of the muscle effects on kinematic responses of head-neck complex in frontal impact at high speed
Finite-Elemente-Modellierung der Muskeleinflüsse auf die kinematische Antwort des Kopf-Nacken-Komplexes bei einem Frontalaufprall mit hoher Geschwindigkeit
2001
10 Seiten, 9 Bilder, 3 Tabellen, 28 Quellen
Aufsatz (Zeitschrift)
Englisch
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