| Journal: | Materials research |
| Database: | PERIÓDICA |
| System number: | 000312454 |
| ISSN: | 1516-1439 |
| Authors: | Candido, Geraldo Mauricio1 Rezende, Mirabel Cerqueira2 Almeida, Sergio Frascino Muller de |
| Institutions: | 1Instituto Tecnologico de Aeronautica, Divisao de Engenharia Mecanica-Aeronautica, Sao Jose dos Campos, Sao Paulo. Brasil 2Instituto de Aeronautica e Espaco, Divisao de Materiais, Sao Jose dos Campos, Sao Paulo. Brasil |
| Year: | 2000 |
| Season: | Abr |
| Volumen: | 3 |
| Number: | 2 |
| Pages: | 11-17 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | The interlaminar stresses are confined to a region near the free edge. Therefore, the laminate stacking sequence and the free edge finishing are some of the factors that affect the strength of the laminate and limit its life. The use of molded edges eliminates the need for trimming and machining the laminates edges thus improving productivity. However, this fabrication technique may have a detrimental effect on the laminate strength for certain stacking sequences. This effect in the presence of moisture has not been characterized. This work presents the results of a comparative study of the resistance to delamination of laminates with machined edges and molded edges. Additionally, two environmental conditions were considered: dry laminates and laminates saturated with moisture. The tensile strength of the laminates were measured and micrographs were used to analyze the microstructure of the laminates near the free edges. It is concluded that the mechanical properties of advanced composites depend on the environmental conditions and the fabrication techniques used to produce the laminates. Therefore, it is necessary to account for these factors when experimentally determining the design allowables |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería de materiales, Materiales compuestos, Laminados, Propiedades mecánicas, Bordes |
| Keyword: | Engineering, Materials engineering, Composite materials, Laminates, Mechanical properties, Borders |
| Full text: | Texto completo (Ver HTML) |
