Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
NUMERICAL ANALYSIS OF INTERFACE OF DENTAL PROSTHESES THROUGH DAMAGES MECHANIC
Submission Author:
Renan Archangelo dos Reis , PR
Co-Authors:
Renan Archangelo dos Reis, José Aparecido Lopes Junior
Presenter: Renan Archangelo dos Reis
doi://10.26678/ABCM.COBEM2019.COB2019-0403
Abstract
Nowadays, in dentistry, after the loss of teeth for various reasons, they have been replaced by dental implants. The importance of biomechanical computational models is increasing, since these tools allow the simulation of the behavior of these devices that try to restore the functions of lost teeth. In the analysis of these prosthetic systems, it is essential to adequately represent the interaction between the different components that are commonly attached by means of screws. Possible failures can adversely affect the correct functioning of the joint, or even produce stresses that are responsible for serious damage to prosthetics or bones. In this work, solid finite tetrahedral elements with high aspect ratio are used to represent the contact interface between the components (implant / screw / crown). A constitutive damage model is used to reproduce the behavior of these interface elements. The model is designed to represent the differential behavior in tension and compression on the contact surface, allowing the separation of the components without offering resistance, however, preventing the interpenetration movement in case of contact compression. Thus, it is expected that this methodology will be able to represent aspects of the behavior of the interfaces present in dental implants.
Keywords
finite elements method, Damage Mechanic, Model, Interface, biomechanics
