| Journal: | Materials research |
| Database: | PERIÓDICA |
| System number: | 000312800 |
| ISSN: | 1516-1439 |
| Authors: | Freire-Junior, Raimundo Carlos Silverio1 Aquino, Eve Maria Freire de |
| Institutions: | 1Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte. Brasil |
| Year: | 2005 |
| Season: | Ene-Mar |
| Volumen: | 8 |
| Number: | 1 |
| Pages: | 45-49 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Nota breve o noticia |
| Approach: | Experimental |
| English abstract | Damaging of composite laminates was monitored during fatigue tests, revealing the formation and propagation stages for compressive, tensile, or alternate cyclic loading. Two different laminate stacking sequences, with different number of layers, were tested. The laminates consisted of E-glass fibers reinforced orthoftalic polyester resin (FGRP) shaped as mats or (bi-direction) woven fabric textile. Preliminary density, calcination tests and static compressive and tensile mechanical tests were carried out. Then, tensile (R = 0.1), compressive (R = 10) and alternate axial (R = - 1) fatigue tests were performed at different maximum stresses. Tensile cyclic loading resulted in crack formation and propagation confirming the findings reported in other studies. On the other hand, damage from alternate and compressive fatigue depicted peculiar features. Less extended damage and better fatigue resistance were observed for the laminate with symmetrically distributed layers |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería de materiales, Ingeniería mecánica, Fibra de vidrio, Laminado, Propiedades mecánicas, Daños, Fatiga de materiales |
| Keyword: | Engineering, Materials engineering, Mechanical engineering, Glass fiber, Laminates, Mechanical properties, Damage, Materials fatigue |
| Full text: | Texto completo (Ver HTML) |
