An ellipsoidal model for studying response of head impacts

• Autorzy: Heydari M. , Jani S.
• Języki publikacji: EN

Abstrakty

EN

The objective of this study was to propose a new analytical model for studying response of head impacts. Head is modeled by fluidfilled ellipsoidal shell of inconstant thickness impacted by a solid elastic sphere. Modeling the head as an ellipsoid is more realistic than modeling it as a sphere, the previous model existing in the literature [3]–[8]. In this model, the effect of Hertzian contact stiffness and local shell stiffness are combined to derive explicit equations for impact duration, the peak force transmitted to head, and the head injury criterion. One of the advantages of the model presented is sensitivity to the site of impact. A comparison between the present analytical results with the analytical data from spherical model [8] has been done to verify the validation of the present model.

Słowa kluczowe

EN

ellipsoidal model; head impact; shell stiffness; Hertzian contact stiffness

PL

model elipsoidalny; sztywność; głowa; uraz głowy

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2010
• Tom: Vol. 12, no. 1
• Strony: 47--53
• Opis fizyczny: Bibliogr. 20 poz., il.

Twórcy

autor

Heydari M.

autor

Jani S.

• Department of Mechanical Engineering, Sharif University of Technology, Azadi Avenue, Tehran, Iran,

Bibliografia

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