| Revista: | Journal of the Brazilian Society of Mechanical Sciences and Engineering |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312268 |
| ISSN: | 1678-5878 |
| Autores: | Meira, J.B.C1 Ballester, R.Y Lima, R.G2 Souza, R. Martins de Driemeier, L3 |
| Instituciones: | 1Universidade de Sao Paulo, Departamento de Materiais Dentais, Sao Paulo. Brasil 2Universidade de Sao Paulo, Departamento de Engenharia Mecanica, Sao Paulo. Brasil 3Universidade de Sao Paulo, Departamento de Mecatrónica, Sao Paulo. Brasil |
| Año: | 2005 |
| Periodo: | Jul-Sep |
| Volumen: | 27 |
| Número: | 3 |
| Paginación: | 310-313 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental |
| Resumen en inglés | Recently the bond strength of composite resin to tooth has received attention from researchers of dental materials. Limitations imposed by the biological substrate, such as the size of the specimen, fostered the development of a tensile test with small dimensions. Due to the reduced size of the specimens, the test is called microtensile test. The specialized literature has not presented standards for the test parameters and the relatively large scatter of published bond strength data probably reflects the lack of standards for the test parameters. The objective of this study is to evaluate how specimen geometry and loading conditions affect the estimation of bond strength. A numerical simulation of the test using a Finite Element Model was performed to determine the associated variations on the stress field imposed by variations in the geometry of the specimen and loading conditions. The Finite Element pre-processing and post-processing was performed on Patran® and the Finite Element processing was performed on Marc®. Results from numerical simulations show that geometrical parameters and loading conditions have a significant influence on the stress field. Some suggestions of standards for the microtensile test considering the non-uniform stress field are presented |
| Disciplinas: | Ingeniería, Medicina, Matemáticas |
| Palabras clave: | Ingeniería de materiales, Odontología, Geometría, Elementos finitos, Estrés, Pruebas, Materiales odontológicos |
| Keyword: | Engineering, Medicine, Mathematics, Materials engineering, Dentistry, Finite elements, Stress, Tests, Odontologic materials |
| Texto completo: | Texto completo (Ver HTML) |
