| Revista: | Materials research |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312930 |
| ISSN: | 1516-1439 |
| Autores: | Albuquerque, Maria da Consolacao Fonseca de1 Rodrigues, Jose de Anchieta2 |
| Instituciones: | 1Universidade Estadual Paulista "Julio de Mesquita Filho", Faculdade de Engenharia, Ilha Solteira, Sao Paulo. Brasil 2Universidade Federal de Sao Carlos, Departamento de Engenharia de Materiais, Sao Carlos, Sao Paulo. Brasil |
| Año: | 2006 |
| Periodo: | Oct-Dic |
| Volumen: | 9 |
| Número: | 4 |
| Paginación: | 361-368 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Nota breve o noticia |
| Enfoque: | Experimental |
| Resumen en inglés | Double-torsion tests were carried out on a commercial ceramic floor tile to verify whether this test is suitable for determining the R-curve of ceramics. The instantaneous crack length was obtained by means of compliance calibration, and it was found that the experimental compliance underestimates the real crack length. The load vs. displacement curves were also found to drop after maximum loading, causing the stress intensity factor to decline. The R-curves were calculated by two methods: linear elastic fracture mechanics and the energetic method. It was obtained that the average values of crack resistance, R, and the double of the work of fracture, 2 × gwof, did not depend on notch length, a0, which is a highly relevant finding, indicating that these parameters were less dependent on the test specimen's geometry. The proposal was to use small notches, which produce long stable crack propagation paths that in turn are particularly important in the case of coarse microstructures |
| Disciplinas: | Ingeniería, Química |
| Palabras clave: | Ingeniería de materiales, Ingeniería mecánica, Química de polímeros, Cerámica, Aceite de ricino, Propiedades mecánicas, Biomedicina |
| Keyword: | Engineering, Chemistry, Materials engineering, Mechanical engineering, Polymer chemistry, Ceramics, Castor oil, Mechanical properties, Biomedicine |
| Texto completo: | Texto completo (Ver HTML) |
