Revista: | Materials research |
Base de datos: | PERIÓDICA |
Número de sistema: | 000312888 |
ISSN: | 1516-1439 |
Autores: | Tarpani, Jose Ricardo1 Milan, Marcelo Tadeu Spinelli, Dirceu Bose, Waldek Wladimir |
Instituciones: | 1Universidade de Sao Paulo, Escola de Engenharia, Sao Carlos, Sao Paulo. Brasil |
Año: | 2006 |
Periodo: | Abr-Jun |
Volumen: | 9 |
Número: | 2 |
Paginación: | 121-130 |
País: | Brasil |
Idioma: | Inglés |
Tipo de documento: | Nota breve o noticia |
Enfoque: | Experimental |
Resumen en inglés | In Part II of this work, quasi-static tensile properties of four aeronautical grade carbon-epoxy composite laminates, in both the as-received and pre-fatigued states, have been determined and compared. Quasi-static mechanical properties assessed were tensile strength and stiffness, tenacity (toughness) at the maximum load and for a 50% load drop-off. In general, as-molded unidirectional cross-ply carbon fiber (tape) reinforcements impregnated with either standard or rubber-toughened epoxy resin exhibited the maximum performance. The materials also displayed a significant tenacification (toughening) after exposed to cyclic loading, resulting from the increased stress (the so-called wear-in phenomenon) and/or strain at the maximum load capacity of the specimens. With no exceptions, two-dimensional woven textile (fabric) pre-forms fractured catastrophically under identical cyclic loading conditions imposed to the fiber tape architecture, thus preventing their residual properties from being determined |
Disciplinas: | Ingeniería |
Palabras clave: | Ingeniería de materiales, Ingeniería mecánica, Carbono/epoxi, Láminas, Aeronáutica, Propiedades mecánicas, Fatiga de materiales, Resistencia |
Keyword: | Engineering, Materials engineering, Mechanical engineering, Carbon/epoxy, Laminates, Aeronautics, Mechanical properties, Materials fatigue, Resistance |
Texto completo: | Texto completo (Ver HTML) |