Photoelastic Analysis of the Vertebral Fixation System Using Different Screws

Autor:	Antonio Carlos Shimano, Cleudmar Amaral de Araújo, Helton Luiz Aparecido Defino, M. M. Shimano, Sarah Fakher Fakhouri
Rok vydání:	2012
Předmět:	Outer diameter Photoelasticity Materials science business.industry Vertebral fixation Biomechanics Shear stress Pullout strength Structural engineering business
Zdroj:	Engineering, Technology & Applied Science Research. 2:190-195
ISSN:	1792-8036 2241-4487
DOI:	10.48084/etasr.144
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ea487700e50be59e2a1997e74f6b5c79 https://doi.org/10.48084/etasr.144 Zobrazit plný text záznamu