Photoelastic Analysis of the Vertebral Fixation System Using Different Screws
Journal Title: Engineering, Technology & Applied Science Research - Year 2012, Vol 2, Issue 2
Abstract
The purpose of this study was to compare using photoelasticity, the internal stresses produced by two types of pedicular screws (Synthes™) with three different diameters, when submitted to different pullout strengths. The fringe orders were evaluated around the screws using the Tardy compensation method. In all the models analyzed, the shear stress was calculated. Results showed that, independently of the applied load, the screw of smaller outer diameter had larger values of shear stress. According to the analysis realized, we observed that the place of highest stress was in the last thread, close to the head of the screws.
Authors and Affiliations
S. F. Fakhouri, M. M. Shimano, C. A. Araujo, H. L. Defino, A. C. Shimano
Keywords
Related Articles
- EP ID EP84983
- DOI -
- Views 256
- Downloads 0
Simulation of the Optimized Structure of a Laterally Coupled Distributed Feedback (LC-DFB) Semiconductor Laser Above Threshold
In this paper, the laterally coupled distributed feedback semiconductor laser is studied. In the simulations performed, variations of structural parameters such as the grating amplitude a, the ridge width W, the thicknes...
Influence of Material and Geometrical Properties of Permanent Magnets on Cogging Torque of BLDC
Aim of this study is to investigate the influence of both material and geometrical properties of surface mounted permanent magnets (PM) on cogging torque of a brushless DC motor (BLDC) by means of numerical modeling base...
Application of Time Recursive Processing for the Development of a Time/Phase Shifter
This paper describes a powerful digital time and/or phase shifter of pulse rates, based on Time Recursive Processing. It can function either as a time shifter or as a phase shifter. The circuit can generate precise shift...
Optimum Scheme for Insulation System in HV Generator Based on Electromagnetic Analysis
Electrical insulations are one of the basic parts of electrical machinery in any sizes and characteristics. Focusing on insulating, studies on the operation of industrial-electrical machinery came to the fact that the mo...
Modeling a PV-FC-Hydrogen Hybrid Power Generation System
Electrical grid expansion onto remote areas is often not cost-effective and/or technologically feasible. Thus, isolated electrical systems are preferred in such cases. This paper focuses on a hybrid photovoltaic (PV)-hyd...