Radiographic Investigation of the Effects of Ply Modification on Damage Development in Laminates Containing Circular Holes
| Autor: | W. Steven Johnson, Paul Treasurer |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
congenital
hereditary and neonatal diseases and abnormalities X ray radiography animal structures Materials science integumentary system business.industry Mechanical Engineering Radiography Delamination Mechanics of Materials embryonic structures Crack initiation Materials Chemistry Ceramics and Composites Composite material business |
| Zdroj: | Journal of Composite Materials. 42:2143-2161 |
| ISSN: | 1530-793X 0021-9983 |
| Popis: | The goal of this research was to evaluate possible damage suppression in multi-directional notched laminates through the use of slightly off-axis longitudinal plies. These `non-traditional' laminates were compared to laminates with 0° longitudinal plies for quasi-isotropic and hard lay-ups, for open hole tension, filled hole tension, and single-shear bearing loadings. In-situ radiographic inspections were performed to evaluate damage initiation, progression, and suppression. In notched tension, the non-traditional laminates were less strong and stiff than their traditional counterparts, but X-ray images clearly showed the suppression of longitudinal splitting and delamination. Under single-shear bearing loads, the non-traditional laminates demonstrated increased bearing resistance compared to traditional laminates, and the non-traditional laminates were less prone to damage in the longitudinal plies. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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