A 3d-fem Simulation of Highest Stress Lines in Mandible Fractures by Elastic Impact |
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Authors: | J. M. VIAÑO M. BURGUERA J. R. FDEZ-GARCÍA |
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Affiliation: | Departamento de Matemdtica Aplicada , Universidade de Santiago de Compostela , Santiago de Compostela, 15706, Spain |
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Abstract: | Abstract In this article, the more usual mandible fracture areas are located by identifying the highest stress lines using a three-dimensional (tetrahedral) finite element method. By taking into account the temporomandibular contact and the inertia effects, the mathematical model is considered to be a dynamic Signorini's problem, that is, a dynamic variational inequality which is discretized in time following Newmark's method. So, in each time step a stationary variational inequality is solved by a penalty-duality algorithm. Finally, some numerical results obtained by simulating the more usual fractures in the human mandible are presented and compared with clinical experimental information. |
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Keywords: | Finite elements dynamic variational inequality signorini's problem mandible fracture |
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