The effects of load location and misalignment on shear/peel testing of direct bonded orthodontic brackets—A finite element model

1994 ◽  
Vol 106 (4) ◽  
pp. 395-402 ◽  
Author(s):  
Thomas R. Katona
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Orthodontic Brackets ◽  
Peel Testing ◽  
Load Location

Finite Element Model and Analysis of Mandibular Incisors' Orthodontics

2012 ◽  
Vol 569 ◽  
pp. 546-551
Author(s):  
Xiao Fan Deng ◽  
Ling Jiang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Stress Distribution ◽  
Finite Element Model ◽  
External Force ◽  
Orthodontic Treatment ◽  
Ct Scanning ◽  
Element Model ◽  
Orthodontic Brackets ◽  
Lateral Incisor

This paper uses finite element method (FEM) to simulate the stress distribution and the displacements during the orthodontic process of the mandibular lateral incisor. It provides theoretical guidance for the design of the orthodontic treatment. This study is as follows: (1) Use the software of MIMICS to reconstruct models of the mandible and the dentition by CT scanning images. (2) Use the software of Pro/Engineer (Pro/e) to simplify the model built in Mimics, establish the model of the orthodontic brackets, and assemble the mandible, the dentition and the brackets together. (3) Simulate the process of orthodontic surgery, use the software of ANSYS to study the effect of orthodontic surgery by changing the direction in which external force is applied, and reveal the regularity of displacements and stress distribution of the mandibular lateral incisor caused by local displacements.

Finite Element Simulation of Tire-Rim Interface

1989 ◽  
Vol 17 (4) ◽  
pp. 305-325 ◽  
Author(s):  
N. T. Tseng ◽  
R. G. Pelle ◽  
J. P. Chang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Contact Pressure ◽  
Element Model ◽  
Experimental Measurements ◽  
Inflation Pressure ◽  
Interference Fit ◽  
Element Simulation ◽  
Rubber Composite

Abstract A finite element model was developed to simulate the tire-rim interface. Elastomers were modeled by nonlinear incompressible elements, whereas plies were simulated by cord-rubber composite elements. Gap elements were used to simulate the opening between tire and rim at zero inflation pressure. This opening closed when the inflation pressure was increased gradually. The predicted distribution of contact pressure at the tire-rim interface agreed very well with the available experimental measurements. Several variations of the tire-rim interference fit were analyzed.

Torsional Analysis of a Steel Cord-Rubber Tire Belt Structure

1996 ◽  
Vol 24 (4) ◽  
pp. 339-348 ◽  
Author(s):  
R. M. V. Pidaparti
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Composite Structures ◽  
Three Dimensional ◽  
Element Model ◽  
Torsional Stiffness ◽  
Element Analysis ◽  
Rubber Belt ◽  
Steel Cord ◽  
Torsional Analysis

Abstract A three-dimensional (3D) beam finite element model was developed to investigate the torsional stiffness of a twisted steel-reinforced cord-rubber belt structure. The present 3D beam element takes into account the coupled extension, bending, and twisting deformations characteristic of the complex behavior of cord-rubber composite structures. The extension-twisting coupling due to the twisted nature of the cords was also considered in the finite element model. The results of torsional stiffness obtained from the finite element analysis for twisted cords and the two-ply steel cord-rubber belt structure are compared to the experimental data and other alternate solutions available in the literature. The effects of cord orientation, anisotropy, and rubber core surrounding the twisted cords on the torsional stiffness properties are presented and discussed.

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