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Outline
In order to study the influence of edge delamination defects on the static and fatigue performance of the typical plies of composite blades， the static and fatigue performance of smooth and two kinds of typical composite delamination layers are determined， and the influence of edge delamination defects on static performance and fatigue performance is analysed through SEM analysis. The results show that the static strength， tensile modulus and fatigue limit strength of 4 mm initial lamination defect declined by 0.4%，1.2% and 0.6% respectively due to the existence of initial edge delamination. The static strength， tensile modulus and fatigue ultimate strength of 6 mm initial delamination defect declined by 8.3%， 1.8% and 5.9% respectively due to the existence of initial edge delamination. Owing to the existence of initial edge delamination， the delamination phenomenon is more obvious. Consequently， delamination defects have adverse effects on the static properties and fatigue strength of the typical lamination of composite blades， and the static properties and fatigue strength decline sharply with the delamination defect size.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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